21732953

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 27205632

約数和(自身を除く): 5472679

約数列:

[1, 11, 17, 23, 31, 163, 187, 253, 341, 391, 527, 713, 1793, 2771, 3749, 4301, 5053, 5797, 7843, 12121, 30481, 41239, 55583, 63733, 85901, 116219, 133331, 701063, 944911, 1278409, 1975723, 21732953]

約数ペア:

[(1, 21732953), (11, 1975723), (17, 1278409), (23, 944911), (31, 701063), (163, 133331), (187, 116219), (253, 85901), (341, 63733), (391, 55583), (527, 41239), (713, 30481), (1793, 12121), (2771, 7843), (3749, 5797), (4301, 5053)]