20963756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 41879040

約数和(自身を除く): 20915284

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 79, 148, 158, 163, 316, 326, 407, 652, 814, 869, 1628, 1738, 1793, 2923, 3476, 3586, 5846, 6031, 7172, 11692, 12062, 12877, 24124, 25754, 32153, 51508, 64306, 66341, 128612, 132682, 141647, 265364, 283294, 476449, 566588, 952898, 1905796, 5240939, 10481878, 20963756]

約数ペア:

[(1, 20963756), (2, 10481878), (4, 5240939), (11, 1905796), (22, 952898), (37, 566588), (44, 476449), (74, 283294), (79, 265364), (148, 141647), (158, 132682), (163, 128612), (316, 66341), (326, 64306), (407, 51508), (652, 32153), (814, 25754), (869, 24124), (1628, 12877), (1738, 12062), (1793, 11692), (2923, 7172), (3476, 6031), (3586, 5846)]