397683993

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{2447}}^1$

素因数の和:2637

約数の個数: 32

約数和(自身を含む): 620421120

約数和(自身を除く): 222737127

約数列:

[1, 3, 7, 21, 71, 109, 213, 327, 497, 763, 1491, 2289, 2447, 7341, 7739, 17129, 23217, 51387, 54173, 162519, 173737, 266723, 521211, 800169, 1216159, 1867061, 3648477, 5601183, 18937333, 56811999, 132561331, 397683993]

約数ペア:

[(1, 397683993), (3, 132561331), (7, 56811999), (21, 18937333), (71, 5601183), (109, 3648477), (213, 1867061), (327, 1216159), (497, 800169), (763, 521211), (1491, 266723), (2289, 173737), (2447, 162519), (7341, 54173), (7739, 51387), (17129, 23217)]