21138635

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9901}}^1$

素因数の和:9974

約数の個数: 16

約数和(自身を含む): 29468352

約数和(自身を除く): 8329717

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9901, 49505, 69307, 346535, 603961, 3019805, 4227727, 21138635]

約数ペア:

[(1, 21138635), (5, 4227727), (7, 3019805), (35, 603961), (61, 346535), (305, 69307), (427, 49505), (2135, 9901)]