21245552

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13147}}^1$

素因数の和:13256

約数の個数: 20

約数和(自身を含む): 41573976

約数和(自身を除く): 20328424

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13147, 26294, 52588, 105176, 210352, 1327847, 2655694, 5311388, 10622776, 21245552]

約数ペア:

[(1, 21245552), (2, 10622776), (4, 5311388), (8, 2655694), (16, 1327847), (101, 210352), (202, 105176), (404, 52588), (808, 26294), (1616, 13147)]