21010535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 31581312

約数和(自身を除く): 10570777

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 757, 793, 2135, 3785, 3965, 5299, 5551, 9841, 26495, 27755, 46177, 49205, 68887, 230885, 323239, 344435, 600301, 1616195, 3001505, 4202107, 21010535]

約数ペア:

[(1, 21010535), (5, 4202107), (7, 3001505), (13, 1616195), (35, 600301), (61, 344435), (65, 323239), (91, 230885), (305, 68887), (427, 49205), (455, 46177), (757, 27755), (793, 26495), (2135, 9841), (3785, 5551), (3965, 5299)]