12780663

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 20791296

約数和(自身を除く): 8010633

約数列:

[1, 3, 7, 21, 23, 47, 69, 141, 161, 329, 483, 563, 987, 1081, 1689, 3243, 3941, 7567, 11823, 12949, 22701, 26461, 38847, 79383, 90643, 185227, 271929, 555681, 608603, 1825809, 4260221, 12780663]

約数ペア:

[(1, 12780663), (3, 4260221), (7, 1825809), (21, 608603), (23, 555681), (47, 271929), (69, 185227), (141, 90643), (161, 79383), (329, 38847), (483, 26461), (563, 22701), (987, 12949), (1081, 11823), (1689, 7567), (3243, 3941)]