21359536

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{773}}^1$

素因数の和:949

約数の個数: 40

約数和(自身を含む): 45492624

約数和(自身を除く): 24133088

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 157, 176, 314, 628, 773, 1256, 1546, 1727, 2512, 3092, 3454, 6184, 6908, 8503, 12368, 13816, 17006, 27632, 34012, 68024, 121361, 136048, 242722, 485444, 970888, 1334971, 1941776, 2669942, 5339884, 10679768, 21359536]

約数ペア:

[(1, 21359536), (2, 10679768), (4, 5339884), (8, 2669942), (11, 1941776), (16, 1334971), (22, 970888), (44, 485444), (88, 242722), (157, 136048), (176, 121361), (314, 68024), (628, 34012), (773, 27632), (1256, 17006), (1546, 13816), (1727, 12368), (2512, 8503), (3092, 6908), (3454, 6184)]