21233836

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 40766544

約数和(自身を除く): 19532708

約数列:

[1, 2, 4, 13, 26, 52, 101, 169, 202, 311, 338, 404, 622, 676, 1244, 1313, 2626, 4043, 5252, 8086, 16172, 17069, 31411, 34138, 52559, 62822, 68276, 105118, 125644, 210236, 408343, 816686, 1633372, 5308459, 10616918, 21233836]

約数ペア:

[(1, 21233836), (2, 10616918), (4, 5308459), (13, 1633372), (26, 816686), (52, 408343), (101, 210236), (169, 125644), (202, 105118), (311, 68276), (338, 62822), (404, 52559), (622, 34138), (676, 31411), (1244, 17069), (1313, 16172), (2626, 8086), (4043, 5252)]