81620553

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2357}}^1$

素因数の和:2481

約数の個数: 32

約数和(自身を含む): 133104384

約数和(自身を除く): 51483831

約数列:

[1, 3, 7, 17, 21, 51, 97, 119, 291, 357, 679, 1649, 2037, 2357, 4947, 7071, 11543, 16499, 34629, 40069, 49497, 120207, 228629, 280483, 685887, 841449, 1600403, 3886693, 4801209, 11660079, 27206851, 81620553]

約数ペア:

[(1, 81620553), (3, 27206851), (7, 11660079), (17, 4801209), (21, 3886693), (51, 1600403), (97, 841449), (119, 685887), (291, 280483), (357, 228629), (679, 120207), (1649, 49497), (2037, 40069), (2357, 34629), (4947, 16499), (7071, 11543)]