21961688

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 53049600

約数和(自身を除く): 31087912

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 59, 68, 92, 118, 119, 136, 161, 184, 236, 238, 289, 322, 391, 413, 472, 476, 578, 644, 782, 826, 952, 1003, 1156, 1288, 1357, 1564, 1652, 2006, 2023, 2312, 2714, 2737, 3128, 3304, 4012, 4046, 5428, 5474, 6647, 7021, 8024, 8092, 9499, 10856, 10948, 13294, 14042, 16184, 17051, 18998, 21896, 23069, 26588, 28084, 34102, 37996, 46138, 46529, 53176, 56168, 68204, 75992, 92276, 93058, 119357, 136408, 161483, 184552, 186116, 238714, 322966, 372232, 392173, 477428, 645932, 784346, 954856, 1291864, 1568692, 2745211, 3137384, 5490422, 10980844, 21961688]

約数ペア:

[(1, 21961688), (2, 10980844), (4, 5490422), (7, 3137384), (8, 2745211), (14, 1568692), (17, 1291864), (23, 954856), (28, 784346), (34, 645932), (46, 477428), (56, 392173), (59, 372232), (68, 322966), (92, 238714), (118, 186116), (119, 184552), (136, 161483), (161, 136408), (184, 119357), (236, 93058), (238, 92276), (289, 75992), (322, 68204), (391, 56168), (413, 53176), (472, 46529), (476, 46138), (578, 37996), (644, 34102), (782, 28084), (826, 26588), (952, 23069), (1003, 21896), (1156, 18998), (1288, 17051), (1357, 16184), (1564, 14042), (1652, 13294), (2006, 10948), (2023, 10856), (2312, 9499), (2714, 8092), (2737, 8024), (3128, 7021), (3304, 6647), (4012, 5474), (4046, 5428)]