18657886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 32054400

約数和(自身を除く): 13396514

約数列:

[1, 2, 13, 19, 26, 38, 179, 211, 247, 358, 422, 494, 2327, 2743, 3401, 4009, 4654, 5486, 6802, 8018, 37769, 44213, 52117, 75538, 88426, 104234, 490997, 717611, 981994, 1435222, 9328943, 18657886]

約数ペア:

[(1, 18657886), (2, 9328943), (13, 1435222), (19, 981994), (26, 717611), (38, 490997), (179, 104234), (211, 88426), (247, 75538), (358, 52117), (422, 44213), (494, 37769), (2327, 8018), (2743, 6802), (3401, 5486), (4009, 4654)]