21475790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13339}}^1$

素因数の和:13376

約数の個数: 32

約数和(自身を含む): 46103040

約数和(自身を除く): 24627250

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13339, 26678, 66695, 93373, 133390, 186746, 306797, 466865, 613594, 933730, 1533985, 2147579, 3067970, 4295158, 10737895, 21475790]

約数ペア:

[(1, 21475790), (2, 10737895), (5, 4295158), (7, 3067970), (10, 2147579), (14, 1533985), (23, 933730), (35, 613594), (46, 466865), (70, 306797), (115, 186746), (161, 133390), (230, 93373), (322, 66695), (805, 26678), (1610, 13339)]