21144656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1723}}^1$

素因数の和:1803

約数の個数: 40

約数和(自身を含む): 44892960

約数和(自身を除く): 23748304

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1534, 1723, 3068, 3446, 6136, 6892, 12272, 13784, 22399, 27568, 44798, 89596, 101657, 179192, 203314, 358384, 406628, 813256, 1321541, 1626512, 2643082, 5286164, 10572328, 21144656]

約数ペア:

[(1, 21144656), (2, 10572328), (4, 5286164), (8, 2643082), (13, 1626512), (16, 1321541), (26, 813256), (52, 406628), (59, 358384), (104, 203314), (118, 179192), (208, 101657), (236, 89596), (472, 44798), (767, 27568), (944, 22399), (1534, 13784), (1723, 12272), (3068, 6892), (3446, 6136)]