21492510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55109}}^1$

素因数の和:55132

約数の個数: 32

約数和(自身を含む): 55550880

約数和(自身を除く): 34058370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55109, 110218, 165327, 275545, 330654, 551090, 716417, 826635, 1432834, 1653270, 2149251, 3582085, 4298502, 7164170, 10746255, 21492510]

約数ペア:

[(1, 21492510), (2, 10746255), (3, 7164170), (5, 4298502), (6, 3582085), (10, 2149251), (13, 1653270), (15, 1432834), (26, 826635), (30, 716417), (39, 551090), (65, 330654), (78, 275545), (130, 165327), (195, 110218), (390, 55109)]