21407584

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1079

約数の個数: 48

約数和(自身を含む): 46778256

約数和(自身を除く): 25370672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 88, 122, 176, 244, 352, 488, 671, 976, 997, 1342, 1952, 1994, 2684, 3988, 5368, 7976, 10736, 10967, 15952, 21472, 21934, 31904, 43868, 60817, 87736, 121634, 175472, 243268, 350944, 486536, 668987, 973072, 1337974, 1946144, 2675948, 5351896, 10703792, 21407584]

約数ペア:

[(1, 21407584), (2, 10703792), (4, 5351896), (8, 2675948), (11, 1946144), (16, 1337974), (22, 973072), (32, 668987), (44, 486536), (61, 350944), (88, 243268), (122, 175472), (176, 121634), (244, 87736), (352, 60817), (488, 43868), (671, 31904), (976, 21934), (997, 21472), (1342, 15952), (1952, 10967), (1994, 10736), (2684, 7976), (3988, 5368)]