21271250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:70

約数の個数: 160

約数和(自身を含む): 56681856

約数和(自身を除く): 35410606

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 17, 22, 25, 26, 34, 35, 50, 55, 65, 70, 77, 85, 91, 110, 119, 125, 130, 143, 154, 170, 175, 182, 187, 221, 238, 250, 275, 286, 325, 350, 374, 385, 425, 442, 455, 550, 595, 625, 650, 715, 770, 850, 875, 910, 935, 1001, 1105, 1190, 1250, 1309, 1375, 1430, 1547, 1625, 1750, 1870, 1925, 2002, 2125, 2210, 2275, 2431, 2618, 2750, 2975, 3094, 3250, 3575, 3850, 4250, 4375, 4550, 4675, 4862, 5005, 5525, 5950, 6545, 6875, 7150, 7735, 8125, 8750, 9350, 9625, 10010, 10625, 11050, 11375, 12155, 13090, 13750, 14875, 15470, 16250, 17017, 17875, 19250, 21250, 22750, 23375, 24310, 25025, 27625, 29750, 32725, 34034, 35750, 38675, 46750, 48125, 50050, 55250, 56875, 60775, 65450, 74375, 77350, 85085, 89375, 96250, 113750, 116875, 121550, 125125, 138125, 148750, 163625, 170170, 178750, 193375, 233750, 250250, 276250, 303875, 327250, 386750, 425425, 607750, 625625, 818125, 850850, 966875, 1251250, 1519375, 1636250, 1933750, 2127125, 3038750, 4254250, 10635625, 21271250]

約数ペア:

[(1, 21271250), (2, 10635625), (5, 4254250), (7, 3038750), (10, 2127125), (11, 1933750), (13, 1636250), (14, 1519375), (17, 1251250), (22, 966875), (25, 850850), (26, 818125), (34, 625625), (35, 607750), (50, 425425), (55, 386750), (65, 327250), (70, 303875), (77, 276250), (85, 250250), (91, 233750), (110, 193375), (119, 178750), (125, 170170), (130, 163625), (143, 148750), (154, 138125), (170, 125125), (175, 121550), (182, 116875), (187, 113750), (221, 96250), (238, 89375), (250, 85085), (275, 77350), (286, 74375), (325, 65450), (350, 60775), (374, 56875), (385, 55250), (425, 50050), (442, 48125), (455, 46750), (550, 38675), (595, 35750), (625, 34034), (650, 32725), (715, 29750), (770, 27625), (850, 25025), (875, 24310), (910, 23375), (935, 22750), (1001, 21250), (1105, 19250), (1190, 17875), (1250, 17017), (1309, 16250), (1375, 15470), (1430, 14875), (1547, 13750), (1625, 13090), (1750, 12155), (1870, 11375), (1925, 11050), (2002, 10625), (2125, 10010), (2210, 9625), (2275, 9350), (2431, 8750), (2618, 8125), (2750, 7735), (2975, 7150), (3094, 6875), (3250, 6545), (3575, 5950), (3850, 5525), (4250, 5005), (4375, 4862), (4550, 4675)]