21075040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:660

約数の個数: 96

約数和(自身を含む): 58834944

約数和(自身を除く): 37759904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 434, 496, 560, 607, 620, 868, 992, 1085, 1120, 1214, 1240, 1736, 2170, 2428, 2480, 3035, 3472, 4249, 4340, 4856, 4960, 6070, 6944, 8498, 8680, 9712, 12140, 16996, 17360, 18817, 19424, 21245, 24280, 33992, 34720, 37634, 42490, 48560, 67984, 75268, 84980, 94085, 97120, 131719, 135968, 150536, 169960, 188170, 263438, 301072, 339920, 376340, 526876, 602144, 658595, 679840, 752680, 1053752, 1317190, 1505360, 2107504, 2634380, 3010720, 4215008, 5268760, 10537520, 21075040]

約数ペア:

[(1, 21075040), (2, 10537520), (4, 5268760), (5, 4215008), (7, 3010720), (8, 2634380), (10, 2107504), (14, 1505360), (16, 1317190), (20, 1053752), (28, 752680), (31, 679840), (32, 658595), (35, 602144), (40, 526876), (56, 376340), (62, 339920), (70, 301072), (80, 263438), (112, 188170), (124, 169960), (140, 150536), (155, 135968), (160, 131719), (217, 97120), (224, 94085), (248, 84980), (280, 75268), (310, 67984), (434, 48560), (496, 42490), (560, 37634), (607, 34720), (620, 33992), (868, 24280), (992, 21245), (1085, 19424), (1120, 18817), (1214, 17360), (1240, 16996), (1736, 12140), (2170, 9712), (2428, 8680), (2480, 8498), (3035, 6944), (3472, 6070), (4249, 4960), (4340, 4856)]