18108519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 30357504

約数和(自身を除く): 12248985

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 169, 187, 191, 221, 429, 507, 561, 573, 663, 1859, 2101, 2431, 2483, 2873, 3247, 5577, 6303, 7293, 7449, 8619, 9741, 27313, 31603, 32279, 35717, 42211, 81939, 94809, 96837, 107151, 126633, 355069, 464321, 548743, 1065207, 1392963, 1646229, 6036173, 18108519]

約数ペア:

[(1, 18108519), (3, 6036173), (11, 1646229), (13, 1392963), (17, 1065207), (33, 548743), (39, 464321), (51, 355069), (143, 126633), (169, 107151), (187, 96837), (191, 94809), (221, 81939), (429, 42211), (507, 35717), (561, 32279), (573, 31603), (663, 27313), (1859, 9741), (2101, 8619), (2431, 7449), (2483, 7293), (2873, 6303), (3247, 5577)]