21345472

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{853}}^1$

素因数の和:905

約数の個数: 56

約数和(自身を含む): 46853856

約数和(自身を除く): 25508384

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 853, 1088, 1472, 1564, 1706, 3128, 3412, 6256, 6824, 12512, 13648, 14501, 19619, 25024, 27296, 29002, 39238, 54592, 58004, 78476, 116008, 156952, 232016, 313904, 333523, 464032, 627808, 667046, 928064, 1255616, 1334092, 2668184, 5336368, 10672736, 21345472]

約数ペア:

[(1, 21345472), (2, 10672736), (4, 5336368), (8, 2668184), (16, 1334092), (17, 1255616), (23, 928064), (32, 667046), (34, 627808), (46, 464032), (64, 333523), (68, 313904), (92, 232016), (136, 156952), (184, 116008), (272, 78476), (368, 58004), (391, 54592), (544, 39238), (736, 29002), (782, 27296), (853, 25024), (1088, 19619), (1472, 14501), (1564, 13648), (1706, 12512), (3128, 6824), (3412, 6256)]