18113458

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 36

約数和(自身を含む): 31277610

約数和(自身を除く): 13164152

約数列:

[1, 2, 11, 22, 29, 58, 89, 121, 178, 242, 319, 638, 841, 979, 1682, 1958, 2581, 3509, 5162, 7018, 9251, 10769, 18502, 21538, 28391, 56782, 74849, 101761, 149698, 203522, 312301, 624602, 823339, 1646678, 9056729, 18113458]

約数ペア:

[(1, 18113458), (2, 9056729), (11, 1646678), (22, 823339), (29, 624602), (58, 312301), (89, 203522), (121, 149698), (178, 101761), (242, 74849), (319, 56782), (638, 28391), (841, 21538), (979, 18502), (1682, 10769), (1958, 9251), (2581, 7018), (3509, 5162)]