20212530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51827}}^1$

素因数の和:51850

約数の個数: 32

約数和(自身を含む): 52242624

約数和(自身を除く): 32030094

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51827, 103654, 155481, 259135, 310962, 518270, 673751, 777405, 1347502, 1554810, 2021253, 3368755, 4042506, 6737510, 10106265, 20212530]

約数ペア:

[(1, 20212530), (2, 10106265), (3, 6737510), (5, 4042506), (6, 3368755), (10, 2021253), (13, 1554810), (15, 1347502), (26, 777405), (30, 673751), (39, 518270), (65, 310962), (78, 259135), (130, 155481), (195, 103654), (390, 51827)]