21338646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2579}}^1$

素因数の和:2788

約数の個数: 32

約数和(自身を含む): 49040640

約数和(自身を除く): 27701994

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 197, 394, 591, 1182, 1379, 2579, 2758, 4137, 5158, 7737, 8274, 15474, 18053, 36106, 54159, 108318, 508063, 1016126, 1524189, 3048378, 3556441, 7112882, 10669323, 21338646]

約数ペア:

[(1, 21338646), (2, 10669323), (3, 7112882), (6, 3556441), (7, 3048378), (14, 1524189), (21, 1016126), (42, 508063), (197, 108318), (394, 54159), (591, 36106), (1182, 18053), (1379, 15474), (2579, 8274), (2758, 7737), (4137, 5158)]