21280338

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{19381}}^1$

素因数の和:19450

約数の個数: 24

約数和(自身を含む): 46865676

約数和(自身を除く): 25585338

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 19381, 38762, 58143, 116286, 174429, 348858, 1182241, 2364482, 3546723, 7093446, 10640169, 21280338]

約数ペア:

[(1, 21280338), (2, 10640169), (3, 7093446), (6, 3546723), (9, 2364482), (18, 1182241), (61, 348858), (122, 174429), (183, 116286), (366, 58143), (549, 38762), (1098, 19381)]