21791536

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{8059}}^1$

素因数の和:8093

約数の個数: 30

約数和(自身を含む): 45724380

約数和(自身を除く): 23932844

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 8059, 16118, 32236, 64472, 104767, 128944, 209534, 419068, 838136, 1361971, 1676272, 2723942, 5447884, 10895768, 21791536]

約数ペア:

[(1, 21791536), (2, 10895768), (4, 5447884), (8, 2723942), (13, 1676272), (16, 1361971), (26, 838136), (52, 419068), (104, 209534), (169, 128944), (208, 104767), (338, 64472), (676, 32236), (1352, 16118), (2704, 8059)]