21358380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11483}}^1$

素因数の和:11526

約数の個数: 48

約数和(自身を含む): 61737984

約数和(自身を除く): 40379604

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, 11483, 22966, 34449, 45932, 57415, 68898, 114830, 137796, 172245, 229660, 344490, 355973, 688980, 711946, 1067919, 1423892, 1779865, 2135838, 3559730, 4271676, 5339595, 7119460, 10679190, 21358380]

約数ペア:

[(1, 21358380), (2, 10679190), (3, 7119460), (4, 5339595), (5, 4271676), (6, 3559730), (10, 2135838), (12, 1779865), (15, 1423892), (20, 1067919), (30, 711946), (31, 688980), (60, 355973), (62, 344490), (93, 229660), (124, 172245), (155, 137796), (186, 114830), (310, 68898), (372, 57415), (465, 45932), (620, 34449), (930, 22966), (1860, 11483)]