21245796

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4127}}^1$

素因数の和:4161

約数の個数: 72

約数和(自身を含む): 63108864

約数和(自身を除く): 41863068

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4127, 5148, 8254, 12381, 16508, 24762, 37143, 45397, 49524, 53651, 74286, 90794, 107302, 136191, 148572, 160953, 181588, 214604, 272382, 321906, 408573, 482859, 544764, 590161, 643812, 817146, 965718, 1180322, 1634292, 1770483, 1931436, 2360644, 3540966, 5311449, 7081932, 10622898, 21245796]

約数ペア:

[(1, 21245796), (2, 10622898), (3, 7081932), (4, 5311449), (6, 3540966), (9, 2360644), (11, 1931436), (12, 1770483), (13, 1634292), (18, 1180322), (22, 965718), (26, 817146), (33, 643812), (36, 590161), (39, 544764), (44, 482859), (52, 408573), (66, 321906), (78, 272382), (99, 214604), (117, 181588), (132, 160953), (143, 148572), (156, 136191), (198, 107302), (234, 90794), (286, 74286), (396, 53651), (429, 49524), (468, 45397), (572, 37143), (858, 24762), (1287, 16508), (1716, 12381), (2574, 8254), (4127, 5148)]