20693764

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 45001600

約数和(自身を除く): 24307836

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 139, 182, 278, 364, 409, 556, 818, 973, 1636, 1807, 1946, 2863, 3614, 3892, 5317, 5726, 7228, 10634, 11452, 12649, 21268, 25298, 37219, 50596, 56851, 74438, 113702, 148876, 227404, 397957, 739063, 795914, 1478126, 1591828, 2956252, 5173441, 10346882, 20693764]

約数ペア:

[(1, 20693764), (2, 10346882), (4, 5173441), (7, 2956252), (13, 1591828), (14, 1478126), (26, 795914), (28, 739063), (52, 397957), (91, 227404), (139, 148876), (182, 113702), (278, 74438), (364, 56851), (409, 50596), (556, 37219), (818, 25298), (973, 21268), (1636, 12649), (1807, 11452), (1946, 10634), (2863, 7228), (3614, 5726), (3892, 5317)]