647942379

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{5953}}^1$

素因数の和:6107

約数の個数: 32

約数和(自身を含む): 1015133184

約数和(自身を除く): 367190805

約数列:

[1, 3, 7, 21, 71, 73, 213, 219, 497, 511, 1491, 1533, 5183, 5953, 15549, 17859, 36281, 41671, 108843, 125013, 422663, 434569, 1267989, 1303707, 2958641, 3041983, 8875923, 9125949, 30854399, 92563197, 215980793, 647942379]

約数ペア:

[(1, 647942379), (3, 215980793), (7, 92563197), (21, 30854399), (71, 9125949), (73, 8875923), (213, 3041983), (219, 2958641), (497, 1303707), (511, 1267989), (1491, 434569), (1533, 422663), (5183, 125013), (5953, 108843), (15549, 41671), (17859, 36281)]