18972464

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2777}}^1$

素因数の和:2853

約数の個数: 40

約数和(自身を含む): 42714528

約数和(自身を除く): 23742064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 2777, 3416, 5554, 6832, 11108, 19439, 22216, 38878, 44432, 77756, 155512, 169397, 311024, 338794, 677588, 1185779, 1355176, 2371558, 2710352, 4743116, 9486232, 18972464]

約数ペア:

[(1, 18972464), (2, 9486232), (4, 4743116), (7, 2710352), (8, 2371558), (14, 1355176), (16, 1185779), (28, 677588), (56, 338794), (61, 311024), (112, 169397), (122, 155512), (244, 77756), (427, 44432), (488, 38878), (854, 22216), (976, 19439), (1708, 11108), (2777, 6832), (3416, 5554)]