17963890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{601}}^1$

素因数の和:683

約数の個数: 48

約数和(自身を含む): 38294424

約数和(自身を除く): 20330534

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 601, 610, 854, 1202, 2135, 2989, 3005, 4207, 4270, 5978, 6010, 8414, 14945, 21035, 29449, 29890, 36661, 42070, 58898, 73322, 147245, 183305, 256627, 294490, 366610, 513254, 1283135, 1796389, 2566270, 3592778, 8981945, 17963890]

約数ペア:

[(1, 17963890), (2, 8981945), (5, 3592778), (7, 2566270), (10, 1796389), (14, 1283135), (35, 513254), (49, 366610), (61, 294490), (70, 256627), (98, 183305), (122, 147245), (245, 73322), (305, 58898), (427, 42070), (490, 36661), (601, 29890), (610, 29449), (854, 21035), (1202, 14945), (2135, 8414), (2989, 6010), (3005, 5978), (4207, 4270)]