20976488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2117

約数の個数: 32

約数和(自身を含む): 42797160

約数和(自身を除く): 21820672

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 1997, 2626, 3994, 5252, 7988, 10504, 15976, 25961, 51922, 103844, 201697, 207688, 403394, 806788, 1613576, 2622061, 5244122, 10488244, 20976488]

約数ペア:

[(1, 20976488), (2, 10488244), (4, 5244122), (8, 2622061), (13, 1613576), (26, 806788), (52, 403394), (101, 207688), (104, 201697), (202, 103844), (404, 51922), (808, 25961), (1313, 15976), (1997, 10504), (2626, 7988), (3994, 5252)]