21659004

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{1471}}^1$

素因数の和:1890

約数の個数: 36

約数和(自身を含む): 54920320

約数和(自身を除く): 33261316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1471, 1636, 2454, 2942, 3681, 4413, 4908, 5884, 7362, 8826, 13239, 14724, 17652, 26478, 52956, 601639, 1203278, 1804917, 2406556, 3609834, 5414751, 7219668, 10829502, 21659004]

約数ペア:

[(1, 21659004), (2, 10829502), (3, 7219668), (4, 5414751), (6, 3609834), (9, 2406556), (12, 1804917), (18, 1203278), (36, 601639), (409, 52956), (818, 26478), (1227, 17652), (1471, 14724), (1636, 13239), (2454, 8826), (2942, 7362), (3681, 5884), (4413, 4908)]