18778578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 46728192

約数和(自身を除く): 27949614

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 163, 182, 211, 273, 326, 422, 489, 546, 633, 978, 1141, 1266, 1477, 2119, 2282, 2743, 2954, 3423, 4238, 4431, 5486, 6357, 6846, 8229, 8862, 12714, 14833, 16458, 19201, 29666, 34393, 38402, 44499, 57603, 68786, 88998, 103179, 115206, 206358, 240751, 447109, 481502, 722253, 894218, 1341327, 1444506, 2682654, 3129763, 6259526, 9389289, 18778578]

約数ペア:

[(1, 18778578), (2, 9389289), (3, 6259526), (6, 3129763), (7, 2682654), (13, 1444506), (14, 1341327), (21, 894218), (26, 722253), (39, 481502), (42, 447109), (78, 240751), (91, 206358), (163, 115206), (182, 103179), (211, 88998), (273, 68786), (326, 57603), (422, 44499), (489, 38402), (546, 34393), (633, 29666), (978, 19201), (1141, 16458), (1266, 14833), (1477, 12714), (2119, 8862), (2282, 8229), (2743, 6846), (2954, 6357), (3423, 5486), (4238, 4431)]