20458191

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 31691520

約数和(自身を除く): 11233329

約数列:

[1, 3, 13, 17, 39, 51, 59, 177, 221, 523, 663, 767, 1003, 1569, 2301, 3009, 6799, 8891, 13039, 20397, 26673, 30857, 39117, 92571, 115583, 346749, 401141, 524569, 1203423, 1573707, 6819397, 20458191]

約数ペア:

[(1, 20458191), (3, 6819397), (13, 1573707), (17, 1203423), (39, 524569), (51, 401141), (59, 346749), (177, 115583), (221, 92571), (523, 39117), (663, 30857), (767, 26673), (1003, 20397), (1569, 13039), (2301, 8891), (3009, 6799)]