21156674

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20868286

約数列:

[1, 2, 7, 11, 14, 22, 37, 47, 74, 77, 79, 94, 154, 158, 259, 329, 407, 517, 518, 553, 658, 814, 869, 1034, 1106, 1738, 1739, 2849, 2923, 3478, 3619, 3713, 5698, 5846, 6083, 7238, 7426, 12166, 12173, 19129, 20461, 24346, 25991, 32153, 38258, 40843, 40922, 51982, 64306, 81686, 133903, 137381, 225071, 267806, 274762, 285901, 450142, 571802, 961667, 1511191, 1923334, 3022382, 10578337, 21156674]

約数ペア:

[(1, 21156674), (2, 10578337), (7, 3022382), (11, 1923334), (14, 1511191), (22, 961667), (37, 571802), (47, 450142), (74, 285901), (77, 274762), (79, 267806), (94, 225071), (154, 137381), (158, 133903), (259, 81686), (329, 64306), (407, 51982), (517, 40922), (518, 40843), (553, 38258), (658, 32153), (814, 25991), (869, 24346), (1034, 20461), (1106, 19129), (1738, 12173), (1739, 12166), (2849, 7426), (2923, 7238), (3478, 6083), (3619, 5846), (3713, 5698)]