21072272

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7793}}^1$

素因数の和:7827

約数の個数: 30

約数和(自身を含む): 44215362

約数和(自身を除く): 23143090

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7793, 15586, 31172, 62344, 101309, 124688, 202618, 405236, 810472, 1317017, 1620944, 2634034, 5268068, 10536136, 21072272]

約数ペア:

[(1, 21072272), (2, 10536136), (4, 5268068), (8, 2634034), (13, 1620944), (16, 1317017), (26, 810472), (52, 405236), (104, 202618), (169, 124688), (208, 101309), (338, 62344), (676, 31172), (1352, 15586), (2704, 7793)]