18491312

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1543}}^1$

素因数の和:1665

約数の個数: 40

約数和(自身を含む): 41354496

約数和(自身を除く): 22863184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1543, 1712, 2996, 3086, 5992, 6172, 10801, 11984, 12344, 21602, 24688, 43204, 86408, 165101, 172816, 330202, 660404, 1155707, 1320808, 2311414, 2641616, 4622828, 9245656, 18491312]

約数ペア:

[(1, 18491312), (2, 9245656), (4, 4622828), (7, 2641616), (8, 2311414), (14, 1320808), (16, 1155707), (28, 660404), (56, 330202), (107, 172816), (112, 165101), (214, 86408), (428, 43204), (749, 24688), (856, 21602), (1498, 12344), (1543, 11984), (1712, 10801), (2996, 6172), (3086, 5992)]