18405738

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 44593920

約数和(自身を除く): 26188182

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 157, 167, 234, 314, 334, 351, 471, 501, 702, 942, 1002, 1413, 1503, 2041, 2171, 2826, 3006, 4082, 4239, 4342, 4509, 6123, 6513, 8478, 9018, 12246, 13026, 18369, 19539, 26219, 36738, 39078, 52438, 55107, 58617, 78657, 110214, 117234, 157314, 235971, 340847, 471942, 681694, 707913, 1022541, 1415826, 2045082, 3067623, 6135246, 9202869, 18405738]

約数ペア:

[(1, 18405738), (2, 9202869), (3, 6135246), (6, 3067623), (9, 2045082), (13, 1415826), (18, 1022541), (26, 707913), (27, 681694), (39, 471942), (54, 340847), (78, 235971), (117, 157314), (157, 117234), (167, 110214), (234, 78657), (314, 58617), (334, 55107), (351, 52438), (471, 39078), (501, 36738), (702, 26219), (942, 19539), (1002, 18369), (1413, 13026), (1503, 12246), (2041, 9018), (2171, 8478), (2826, 6513), (3006, 6123), (4082, 4509), (4239, 4342)]