21071196

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 55910400

約数和(自身を除く): 34839204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 237, 239, 279, 316, 372, 474, 478, 558, 711, 717, 948, 956, 1116, 1422, 1434, 2151, 2449, 2844, 2868, 4302, 4898, 7347, 7409, 8604, 9796, 14694, 14818, 18881, 22041, 22227, 29388, 29636, 37762, 44082, 44454, 56643, 66681, 75524, 88164, 88908, 113286, 133362, 169929, 226572, 266724, 339858, 585311, 679716, 1170622, 1755933, 2341244, 3511866, 5267799, 7023732, 10535598, 21071196]

約数ペア:

[(1, 21071196), (2, 10535598), (3, 7023732), (4, 5267799), (6, 3511866), (9, 2341244), (12, 1755933), (18, 1170622), (31, 679716), (36, 585311), (62, 339858), (79, 266724), (93, 226572), (124, 169929), (158, 133362), (186, 113286), (237, 88908), (239, 88164), (279, 75524), (316, 66681), (372, 56643), (474, 44454), (478, 44082), (558, 37762), (711, 29636), (717, 29388), (948, 22227), (956, 22041), (1116, 18881), (1422, 14818), (1434, 14694), (2151, 9796), (2449, 8604), (2844, 7409), (2868, 7347), (4302, 4898)]