21994528

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 45382680

約数和(自身を除く): 23388152

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 137, 173, 232, 274, 346, 464, 548, 692, 928, 1096, 1384, 2192, 2768, 3973, 4384, 5017, 5536, 7946, 10034, 15892, 20068, 23701, 31784, 40136, 47402, 63568, 80272, 94804, 127136, 160544, 189608, 379216, 687329, 758432, 1374658, 2749316, 5498632, 10997264, 21994528]

約数ペア:

[(1, 21994528), (2, 10997264), (4, 5498632), (8, 2749316), (16, 1374658), (29, 758432), (32, 687329), (58, 379216), (116, 189608), (137, 160544), (173, 127136), (232, 94804), (274, 80272), (346, 63568), (464, 47402), (548, 40136), (692, 31784), (928, 23701), (1096, 20068), (1384, 15892), (2192, 10034), (2768, 7946), (3973, 5536), (4384, 5017)]