20980178594

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{393521}}^1$

素因数の和:393626

約数の個数: 32

約数和(自身を含む): 35133644160

約数和(自身を除く): 14153465566

約数列:

[1, 2, 19, 23, 38, 46, 61, 122, 437, 874, 1159, 1403, 2318, 2806, 26657, 53314, 393521, 787042, 7476899, 9050983, 14953798, 18101966, 24004781, 48009562, 171968677, 343937354, 456090839, 552109963, 912181678, 1104219926, 10490089297, 20980178594]

約数ペア:

[(1, 20980178594), (2, 10490089297), (19, 1104219926), (23, 912181678), (38, 552109963), (46, 456090839), (61, 343937354), (122, 171968677), (437, 48009562), (874, 24004781), (1159, 18101966), (1403, 14953798), (2318, 9050983), (2806, 7476899), (26657, 787042), (53314, 393521)]