21905220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11777}}^1$

素因数の和:11820

約数の個数: 48

約数和(自身を含む): 63318528

約数和(自身を除く): 41413308

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, 11777, 23554, 35331, 47108, 58885, 70662, 117770, 141324, 176655, 235540, 353310, 365087, 706620, 730174, 1095261, 1460348, 1825435, 2190522, 3650870, 4381044, 5476305, 7301740, 10952610, 21905220]

約数ペア:

[(1, 21905220), (2, 10952610), (3, 7301740), (4, 5476305), (5, 4381044), (6, 3650870), (10, 2190522), (12, 1825435), (15, 1460348), (20, 1095261), (30, 730174), (31, 706620), (60, 365087), (62, 353310), (93, 235540), (124, 176655), (155, 141324), (186, 117770), (310, 70662), (372, 58885), (465, 47108), (620, 35331), (930, 23554), (1860, 11777)]