217156938

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{19919}}^1$

素因数の和:20026

約数の個数: 32

約数和(自身を含む): 458956800

約数和(自身を除く): 241799862

約数列:

[1, 2, 3, 6, 23, 46, 69, 79, 138, 158, 237, 474, 1817, 3634, 5451, 10902, 19919, 39838, 59757, 119514, 458137, 916274, 1374411, 1573601, 2748822, 3147202, 4720803, 9441606, 36192823, 72385646, 108578469, 217156938]

約数ペア:

[(1, 217156938), (2, 108578469), (3, 72385646), (6, 36192823), (23, 9441606), (46, 4720803), (69, 3147202), (79, 2748822), (138, 1573601), (158, 1374411), (237, 916274), (474, 458137), (1817, 119514), (3634, 59757), (5451, 39838), (10902, 19919)]