21308868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84559}}^1$

素因数の和:84576

約数の個数: 36

約数和(自身を含む): 61559680

約数和(自身を除く): 40250812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84559, 169118, 253677, 338236, 507354, 591913, 761031, 1014708, 1183826, 1522062, 1775739, 2367652, 3044124, 3551478, 5327217, 7102956, 10654434, 21308868]

約数ペア:

[(1, 21308868), (2, 10654434), (3, 7102956), (4, 5327217), (6, 3551478), (7, 3044124), (9, 2367652), (12, 1775739), (14, 1522062), (18, 1183826), (21, 1014708), (28, 761031), (36, 591913), (42, 507354), (63, 338236), (84, 253677), (126, 169118), (252, 84559)]