7920549

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 14851200

約数和(自身を除く): 6930651

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 509, 741, 819, 1197, 1527, 1729, 2223, 3563, 4581, 5187, 6617, 9671, 10689, 15561, 19851, 29013, 32067, 46319, 59553, 67697, 87039, 125723, 138957, 203091, 377169, 416871, 609273, 880061, 1131507, 2640183, 7920549]

約数ペア:

[(1, 7920549), (3, 2640183), (7, 1131507), (9, 880061), (13, 609273), (19, 416871), (21, 377169), (39, 203091), (57, 138957), (63, 125723), (91, 87039), (117, 67697), (133, 59553), (171, 46319), (247, 32067), (273, 29013), (399, 19851), (509, 15561), (741, 10689), (819, 9671), (1197, 6617), (1527, 5187), (1729, 4581), (2223, 3563)]