21100288

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 25993472

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 64, 88, 118, 127, 128, 176, 236, 254, 256, 352, 472, 508, 649, 704, 944, 1016, 1298, 1397, 1408, 1888, 2032, 2596, 2794, 2816, 3776, 4064, 5192, 5588, 7493, 7552, 8128, 10384, 11176, 14986, 15104, 16256, 20768, 22352, 29972, 32512, 41536, 44704, 59944, 82423, 83072, 89408, 119888, 164846, 166144, 178816, 239776, 329692, 357632, 479552, 659384, 959104, 1318768, 1918208, 2637536, 5275072, 10550144, 21100288]

約数ペア:

[(1, 21100288), (2, 10550144), (4, 5275072), (8, 2637536), (11, 1918208), (16, 1318768), (22, 959104), (32, 659384), (44, 479552), (59, 357632), (64, 329692), (88, 239776), (118, 178816), (127, 166144), (128, 164846), (176, 119888), (236, 89408), (254, 83072), (256, 82423), (352, 59944), (472, 44704), (508, 41536), (649, 32512), (704, 29972), (944, 22352), (1016, 20768), (1298, 16256), (1397, 15104), (1408, 14986), (1888, 11176), (2032, 10384), (2596, 8128), (2794, 7552), (2816, 7493), (3776, 5588), (4064, 5192)]