21235356

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1471}}^1$

素因数の和:1882

約数の個数: 36

約数和(自身を含む): 53848704

約数和(自身を除く): 32613348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1471, 1604, 2406, 2942, 3609, 4413, 4812, 5884, 7218, 8826, 13239, 14436, 17652, 26478, 52956, 589871, 1179742, 1769613, 2359484, 3539226, 5308839, 7078452, 10617678, 21235356]

約数ペア:

[(1, 21235356), (2, 10617678), (3, 7078452), (4, 5308839), (6, 3539226), (9, 2359484), (12, 1769613), (18, 1179742), (36, 589871), (401, 52956), (802, 26478), (1203, 17652), (1471, 14436), (1604, 13239), (2406, 8826), (2942, 7218), (3609, 5884), (4413, 4812)]