20843312

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1249}}^1$

素因数の和:1413

約数の個数: 40

約数和(自身を含む): 46500000

約数和(自身を除く): 25656688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 1249, 2086, 2384, 2498, 4172, 4996, 8344, 8743, 9992, 16688, 17486, 19984, 34972, 69944, 139888, 186101, 372202, 744404, 1302707, 1488808, 2605414, 2977616, 5210828, 10421656, 20843312]

約数ペア:

[(1, 20843312), (2, 10421656), (4, 5210828), (7, 2977616), (8, 2605414), (14, 1488808), (16, 1302707), (28, 744404), (56, 372202), (112, 186101), (149, 139888), (298, 69944), (596, 34972), (1043, 19984), (1192, 17486), (1249, 16688), (2086, 9992), (2384, 8743), (2498, 8344), (4172, 4996)]