21085504

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:575

約数の個数: 56

約数和(自身を含む): 46488096

約数和(自身を除く): 25402592

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 122, 176, 244, 352, 488, 491, 671, 704, 976, 982, 1342, 1952, 1964, 2684, 3904, 3928, 5368, 5401, 7856, 10736, 10802, 15712, 21472, 21604, 29951, 31424, 42944, 43208, 59902, 86416, 119804, 172832, 239608, 329461, 345664, 479216, 658922, 958432, 1317844, 1916864, 2635688, 5271376, 10542752, 21085504]

約数ペア:

[(1, 21085504), (2, 10542752), (4, 5271376), (8, 2635688), (11, 1916864), (16, 1317844), (22, 958432), (32, 658922), (44, 479216), (61, 345664), (64, 329461), (88, 239608), (122, 172832), (176, 119804), (244, 86416), (352, 59902), (488, 43208), (491, 42944), (671, 31424), (704, 29951), (976, 21604), (982, 21472), (1342, 15712), (1952, 10802), (1964, 10736), (2684, 7856), (3904, 5401), (3928, 5368)]