21013221355

素因数分解:

$5^1\times 7^1\times {\mathrm{24971}}^1\times {\mathrm{24043}}^1$

素因数の和:49026

約数の個数: 16

約数和(自身を含む): 28820484864

約数和(自身を除く): 7807263509

約数列:

[1, 5, 7, 35, 24043, 24971, 120215, 124855, 168301, 174797, 841505, 873985, 600377753, 3001888765, 4202644271, 21013221355]

約数ペア:

[(1, 21013221355), (5, 4202644271), (7, 3001888765), (35, 600377753), (24043, 873985), (24971, 841505), (120215, 174797), (124855, 168301)]