23978721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{613}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 37134720

約数和(自身を除く): 13155999

約数列:

[1, 3, 13, 17, 39, 51, 59, 177, 221, 613, 663, 767, 1003, 1839, 2301, 3009, 7969, 10421, 13039, 23907, 31263, 36167, 39117, 108501, 135473, 406419, 470171, 614839, 1410513, 1844517, 7992907, 23978721]

約数ペア:

[(1, 23978721), (3, 7992907), (13, 1844517), (17, 1410513), (39, 614839), (51, 470171), (59, 406419), (177, 135473), (221, 108501), (613, 39117), (663, 36167), (767, 31263), (1003, 23907), (1839, 13039), (2301, 10421), (3009, 7969)]