21715500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:520

約数の個数: 96

約数和(自身を含む): 65415168

約数和(自身を除く): 43699668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 125, 150, 155, 186, 250, 300, 310, 372, 375, 465, 467, 500, 620, 750, 775, 930, 934, 1401, 1500, 1550, 1860, 1868, 2325, 2335, 2802, 3100, 3875, 4650, 4670, 5604, 7005, 7750, 9300, 9340, 11625, 11675, 14010, 14477, 15500, 23250, 23350, 28020, 28954, 35025, 43431, 46500, 46700, 57908, 58375, 70050, 72385, 86862, 116750, 140100, 144770, 173724, 175125, 217155, 233500, 289540, 350250, 361925, 434310, 700500, 723850, 868620, 1085775, 1447700, 1809625, 2171550, 3619250, 4343100, 5428875, 7238500, 10857750, 21715500]

約数ペア:

[(1, 21715500), (2, 10857750), (3, 7238500), (4, 5428875), (5, 4343100), (6, 3619250), (10, 2171550), (12, 1809625), (15, 1447700), (20, 1085775), (25, 868620), (30, 723850), (31, 700500), (50, 434310), (60, 361925), (62, 350250), (75, 289540), (93, 233500), (100, 217155), (124, 175125), (125, 173724), (150, 144770), (155, 140100), (186, 116750), (250, 86862), (300, 72385), (310, 70050), (372, 58375), (375, 57908), (465, 46700), (467, 46500), (500, 43431), (620, 35025), (750, 28954), (775, 28020), (930, 23350), (934, 23250), (1401, 15500), (1500, 14477), (1550, 14010), (1860, 11675), (1868, 11625), (2325, 9340), (2335, 9300), (2802, 7750), (3100, 7005), (3875, 5604), (4650, 4670)]