18181527

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 30919680

約数和(自身を除く): 12738153

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 109, 141, 169, 273, 327, 329, 507, 611, 763, 987, 1183, 1417, 1833, 2289, 3549, 4251, 4277, 5123, 7943, 9919, 12831, 15369, 18421, 23829, 29757, 35861, 55263, 55601, 66599, 107583, 128947, 166803, 199797, 386841, 466193, 865787, 1398579, 2597361, 6060509, 18181527]

約数ペア:

[(1, 18181527), (3, 6060509), (7, 2597361), (13, 1398579), (21, 865787), (39, 466193), (47, 386841), (91, 199797), (109, 166803), (141, 128947), (169, 107583), (273, 66599), (327, 55601), (329, 55263), (507, 35861), (611, 29757), (763, 23829), (987, 18421), (1183, 15369), (1417, 12831), (1833, 9919), (2289, 7943), (3549, 5123), (4251, 4277)]