20271784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10259}}^1$

素因数の和:10297

約数の個数: 32

約数和(自身を含む): 43092000

約数和(自身を除く): 22820216

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10259, 20518, 41036, 82072, 133367, 194921, 266734, 389842, 533468, 779684, 1066936, 1559368, 2533973, 5067946, 10135892, 20271784]

約数ペア:

[(1, 20271784), (2, 10135892), (4, 5067946), (8, 2533973), (13, 1559368), (19, 1066936), (26, 779684), (38, 533468), (52, 389842), (76, 266734), (104, 194921), (152, 133367), (247, 82072), (494, 41036), (988, 20518), (1976, 10259)]