12951981

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 40

約数和(自身を含む): 22581504

約数和(自身を除く): 9629523

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 431, 477, 567, 1113, 1293, 1431, 3017, 3339, 3879, 4293, 9051, 10017, 11637, 22843, 27153, 30051, 34911, 68529, 81459, 159901, 205587, 244377, 479703, 616761, 1439109, 1850283, 4317327, 12951981]

約数ペア:

[(1, 12951981), (3, 4317327), (7, 1850283), (9, 1439109), (21, 616761), (27, 479703), (53, 244377), (63, 205587), (81, 159901), (159, 81459), (189, 68529), (371, 34911), (431, 30051), (477, 27153), (567, 22843), (1113, 11637), (1293, 10017), (1431, 9051), (3017, 4293), (3339, 3879)]