18788886

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 42020160

約数和(自身を除く): 23231274

約数列:

[1, 2, 3, 6, 9, 18, 73, 79, 146, 158, 181, 219, 237, 362, 438, 474, 543, 657, 711, 1086, 1314, 1422, 1629, 3258, 5767, 11534, 13213, 14299, 17301, 26426, 28598, 34602, 39639, 42897, 51903, 79278, 85794, 103806, 118917, 128691, 237834, 257382, 1043827, 2087654, 3131481, 6262962, 9394443, 18788886]

約数ペア:

[(1, 18788886), (2, 9394443), (3, 6262962), (6, 3131481), (9, 2087654), (18, 1043827), (73, 257382), (79, 237834), (146, 128691), (158, 118917), (181, 103806), (219, 85794), (237, 79278), (362, 51903), (438, 42897), (474, 39639), (543, 34602), (657, 28598), (711, 26426), (1086, 17301), (1314, 14299), (1422, 13213), (1629, 11534), (3258, 5767)]