18834738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 24710862

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 71, 78, 114, 142, 179, 213, 247, 358, 426, 494, 537, 741, 923, 1074, 1349, 1482, 1846, 2327, 2698, 2769, 3401, 4047, 4654, 5538, 6802, 6981, 8094, 10203, 12709, 13962, 17537, 20406, 25418, 35074, 38127, 44213, 52611, 76254, 88426, 105222, 132639, 165217, 241471, 265278, 330434, 482942, 495651, 724413, 991302, 1448826, 3139123, 6278246, 9417369, 18834738]

約数ペア:

[(1, 18834738), (2, 9417369), (3, 6278246), (6, 3139123), (13, 1448826), (19, 991302), (26, 724413), (38, 495651), (39, 482942), (57, 330434), (71, 265278), (78, 241471), (114, 165217), (142, 132639), (179, 105222), (213, 88426), (247, 76254), (358, 52611), (426, 44213), (494, 38127), (537, 35074), (741, 25418), (923, 20406), (1074, 17537), (1349, 13962), (1482, 12709), (1846, 10203), (2327, 8094), (2698, 6981), (2769, 6802), (3401, 5538), (4047, 4654)]