18836944

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1543}}^1$

素因数の和:1667

約数の個数: 40

約数和(自身を含む): 42120320

約数和(自身を除く): 23283376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1543, 1744, 3052, 3086, 6104, 6172, 10801, 12208, 12344, 21602, 24688, 43204, 86408, 168187, 172816, 336374, 672748, 1177309, 1345496, 2354618, 2690992, 4709236, 9418472, 18836944]

約数ペア:

[(1, 18836944), (2, 9418472), (4, 4709236), (7, 2690992), (8, 2354618), (14, 1345496), (16, 1177309), (28, 672748), (56, 336374), (109, 172816), (112, 168187), (218, 86408), (436, 43204), (763, 24688), (872, 21602), (1526, 12344), (1543, 12208), (1744, 10801), (3052, 6172), (3086, 6104)]