11813890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{509}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 23353920

約数和(自身を除く): 11540030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 211, 422, 509, 1018, 1055, 2110, 2321, 2545, 4642, 5090, 5599, 11198, 11605, 23210, 27995, 55990, 107399, 214798, 536995, 1073990, 1181389, 2362778, 5906945, 11813890]

約数ペア:

[(1, 11813890), (2, 5906945), (5, 2362778), (10, 1181389), (11, 1073990), (22, 536995), (55, 214798), (110, 107399), (211, 55990), (422, 27995), (509, 23210), (1018, 11605), (1055, 11198), (2110, 5599), (2321, 5090), (2545, 4642)]