21049331

素因数分解:

${\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 16

約数和(自身を含む): 22572960

約数和(自身を除く): 1523629

約数列:

[1, 29, 61, 73, 163, 1769, 2117, 4453, 4727, 9943, 11899, 129137, 288347, 345071, 725839, 21049331]

約数ペア:

[(1, 21049331), (29, 725839), (61, 345071), (73, 288347), (163, 129137), (1769, 11899), (2117, 9943), (4453, 4727)]