20542928

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1231}}^1$

素因数の和:1395

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 25287472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 1231, 2086, 2384, 2462, 4172, 4924, 8344, 8617, 9848, 16688, 17234, 19696, 34468, 68936, 137872, 183419, 366838, 733676, 1283933, 1467352, 2567866, 2934704, 5135732, 10271464, 20542928]

約数ペア:

[(1, 20542928), (2, 10271464), (4, 5135732), (7, 2934704), (8, 2567866), (14, 1467352), (16, 1283933), (28, 733676), (56, 366838), (112, 183419), (149, 137872), (298, 68936), (596, 34468), (1043, 19696), (1192, 17234), (1231, 16688), (2086, 9848), (2384, 8617), (2462, 8344), (4172, 4924)]