18491984

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4083

約数の個数: 40

約数和(自身を含む): 41955648

約数和(自身を除く): 23463664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4027, 4592, 8054, 16108, 28189, 32216, 56378, 64432, 112756, 165107, 225512, 330214, 451024, 660428, 1155749, 1320856, 2311498, 2641712, 4622996, 9245992, 18491984]

約数ペア:

[(1, 18491984), (2, 9245992), (4, 4622996), (7, 2641712), (8, 2311498), (14, 1320856), (16, 1155749), (28, 660428), (41, 451024), (56, 330214), (82, 225512), (112, 165107), (164, 112756), (287, 64432), (328, 56378), (574, 32216), (656, 28189), (1148, 16108), (2296, 8054), (4027, 4592)]