21705790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4967}}^1$

素因数の和:5016

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 21217730

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4967, 9934, 24835, 49670, 94373, 114241, 188746, 228482, 471865, 571205, 943730, 1142410, 2170579, 4341158, 10852895, 21705790]

約数ペア:

[(1, 21705790), (2, 10852895), (5, 4341158), (10, 2170579), (19, 1142410), (23, 943730), (38, 571205), (46, 471865), (95, 228482), (115, 188746), (190, 114241), (230, 94373), (437, 49670), (874, 24835), (2185, 9934), (4370, 4967)]