21980945

素因数分解:

$5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{953}}^1$

素因数の和:1624

約数の個数: 16

約数和(自身を含む): 30222720

約数和(自身を除く): 8241775

約数列:

[1, 5, 7, 35, 659, 953, 3295, 4613, 4765, 6671, 23065, 33355, 628027, 3140135, 4396189, 21980945]

約数ペア:

[(1, 21980945), (5, 4396189), (7, 3140135), (35, 628027), (659, 33355), (953, 23065), (3295, 6671), (4613, 4765)]