681003004

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{13931}}^1$

素因数の和:14058

約数の個数: 36

約数和(自身を含む): 1323010584

約数和(自身を除く): 642007580

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 202, 242, 404, 484, 1111, 2222, 4444, 12221, 13931, 24442, 27862, 48884, 55724, 153241, 306482, 612964, 1407031, 1685651, 2814062, 3371302, 5628124, 6742604, 15477341, 30954682, 61909364, 170250751, 340501502, 681003004]

約数ペア:

[(1, 681003004), (2, 340501502), (4, 170250751), (11, 61909364), (22, 30954682), (44, 15477341), (101, 6742604), (121, 5628124), (202, 3371302), (242, 2814062), (404, 1685651), (484, 1407031), (1111, 612964), (2222, 306482), (4444, 153241), (12221, 55724), (13931, 48884), (24442, 27862)]