21353700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 67495680

約数和(自身を除く): 46141980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 53, 60, 68, 75, 79, 85, 100, 102, 106, 150, 158, 159, 170, 204, 212, 237, 255, 265, 300, 316, 318, 340, 395, 425, 474, 510, 530, 636, 790, 795, 850, 901, 948, 1020, 1060, 1185, 1275, 1325, 1343, 1580, 1590, 1700, 1802, 1975, 2370, 2550, 2650, 2686, 2703, 3180, 3604, 3950, 3975, 4029, 4187, 4505, 4740, 5100, 5300, 5372, 5406, 5925, 6715, 7900, 7950, 8058, 8374, 9010, 10812, 11850, 12561, 13430, 13515, 15900, 16116, 16748, 18020, 20145, 20935, 22525, 23700, 25122, 26860, 27030, 33575, 40290, 41870, 45050, 50244, 54060, 62805, 67150, 67575, 71179, 80580, 83740, 90100, 100725, 104675, 125610, 134300, 135150, 142358, 201450, 209350, 213537, 251220, 270300, 284716, 314025, 355895, 402900, 418700, 427074, 628050, 711790, 854148, 1067685, 1256100, 1423580, 1779475, 2135370, 3558950, 4270740, 5338425, 7117900, 10676850, 21353700]

約数ペア:

[(1, 21353700), (2, 10676850), (3, 7117900), (4, 5338425), (5, 4270740), (6, 3558950), (10, 2135370), (12, 1779475), (15, 1423580), (17, 1256100), (20, 1067685), (25, 854148), (30, 711790), (34, 628050), (50, 427074), (51, 418700), (53, 402900), (60, 355895), (68, 314025), (75, 284716), (79, 270300), (85, 251220), (100, 213537), (102, 209350), (106, 201450), (150, 142358), (158, 135150), (159, 134300), (170, 125610), (204, 104675), (212, 100725), (237, 90100), (255, 83740), (265, 80580), (300, 71179), (316, 67575), (318, 67150), (340, 62805), (395, 54060), (425, 50244), (474, 45050), (510, 41870), (530, 40290), (636, 33575), (790, 27030), (795, 26860), (850, 25122), (901, 23700), (948, 22525), (1020, 20935), (1060, 20145), (1185, 18020), (1275, 16748), (1325, 16116), (1343, 15900), (1580, 13515), (1590, 13430), (1700, 12561), (1802, 11850), (1975, 10812), (2370, 9010), (2550, 8374), (2650, 8058), (2686, 7950), (2703, 7900), (3180, 6715), (3604, 5925), (3950, 5406), (3975, 5372), (4029, 5300), (4187, 5100), (4505, 4740)]