21394704

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 59246208

約数和(自身を除く): 37851504

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 157, 167, 204, 272, 314, 334, 408, 471, 501, 628, 668, 816, 942, 1002, 1256, 1336, 1884, 2004, 2512, 2669, 2672, 2839, 3768, 4008, 5338, 5678, 7536, 8007, 8016, 8517, 10676, 11356, 16014, 17034, 21352, 22712, 26219, 32028, 34068, 42704, 45424, 52438, 64056, 68136, 78657, 104876, 128112, 136272, 157314, 209752, 314628, 419504, 445723, 629256, 891446, 1258512, 1337169, 1782892, 2674338, 3565784, 5348676, 7131568, 10697352, 21394704]

約数ペア:

[(1, 21394704), (2, 10697352), (3, 7131568), (4, 5348676), (6, 3565784), (8, 2674338), (12, 1782892), (16, 1337169), (17, 1258512), (24, 891446), (34, 629256), (48, 445723), (51, 419504), (68, 314628), (102, 209752), (136, 157314), (157, 136272), (167, 128112), (204, 104876), (272, 78657), (314, 68136), (334, 64056), (408, 52438), (471, 45424), (501, 42704), (628, 34068), (668, 32028), (816, 26219), (942, 22712), (1002, 21352), (1256, 17034), (1336, 16014), (1884, 11356), (2004, 10676), (2512, 8517), (2669, 8016), (2672, 8007), (2839, 7536), (3768, 5678), (4008, 5338)]