29131921

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 11087279

約数列:

[1, 7, 13, 19, 29, 49, 83, 91, 133, 203, 247, 377, 551, 581, 637, 931, 1079, 1421, 1577, 1729, 2407, 2639, 3857, 4067, 7163, 7553, 11039, 12103, 16849, 18473, 20501, 26999, 31291, 45733, 50141, 52871, 77273, 117943, 143507, 219037, 320131, 350987, 594529, 1004549, 1533259, 2240917, 4161703, 29131921]

約数ペア:

[(1, 29131921), (7, 4161703), (13, 2240917), (19, 1533259), (29, 1004549), (49, 594529), (83, 350987), (91, 320131), (133, 219037), (203, 143507), (247, 117943), (377, 77273), (551, 52871), (581, 50141), (637, 45733), (931, 31291), (1079, 26999), (1421, 20501), (1577, 18473), (1729, 16849), (2407, 12103), (2639, 11039), (3857, 7553), (4067, 7163)]