21282368

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:691

約数の個数: 56

約数和(自身を含む): 46232064

約数和(自身を除く): 24949696

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 136, 248, 272, 496, 527, 544, 631, 992, 1054, 1088, 1262, 1984, 2108, 2524, 4216, 5048, 8432, 10096, 10727, 16864, 19561, 20192, 21454, 33728, 39122, 40384, 42908, 78244, 85816, 156488, 171632, 312976, 332537, 343264, 625952, 665074, 686528, 1251904, 1330148, 2660296, 5320592, 10641184, 21282368]

約数ペア:

[(1, 21282368), (2, 10641184), (4, 5320592), (8, 2660296), (16, 1330148), (17, 1251904), (31, 686528), (32, 665074), (34, 625952), (62, 343264), (64, 332537), (68, 312976), (124, 171632), (136, 156488), (248, 85816), (272, 78244), (496, 42908), (527, 40384), (544, 39122), (631, 33728), (992, 21454), (1054, 20192), (1088, 19561), (1262, 16864), (1984, 10727), (2108, 10096), (2524, 8432), (4216, 5048)]