21369540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11489}}^1$

素因数の和:11532

約数の個数: 48

約数和(自身を含む): 61770240

約数和(自身を除く): 40400700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11489, 22978, 34467, 45956, 57445, 68934, 114890, 137868, 172335, 229780, 344670, 356159, 689340, 712318, 1068477, 1424636, 1780795, 2136954, 3561590, 4273908, 5342385, 7123180, 10684770, 21369540]

約数ペア:

[(1, 21369540), (2, 10684770), (3, 7123180), (4, 5342385), (5, 4273908), (6, 3561590), (10, 2136954), (12, 1780795), (15, 1424636), (20, 1068477), (30, 712318), (31, 689340), (60, 356159), (62, 344670), (93, 229780), (124, 172335), (155, 137868), (186, 114890), (310, 68934), (372, 57445), (465, 45956), (620, 34467), (930, 22978), (1860, 11489)]