18856188

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1003

約数の個数: 72

約数和(自身を含む): 52580528

約数和(自身を除く): 33724340

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 937, 1118, 1548, 1677, 1874, 2236, 2811, 3354, 3748, 5031, 5622, 6708, 8433, 10062, 11244, 12181, 16866, 20124, 24362, 33732, 36543, 40291, 48724, 73086, 80582, 109629, 120873, 146172, 161164, 219258, 241746, 362619, 438516, 483492, 523783, 725238, 1047566, 1450476, 1571349, 2095132, 3142698, 4714047, 6285396, 9428094, 18856188]

約数ペア:

[(1, 18856188), (2, 9428094), (3, 6285396), (4, 4714047), (6, 3142698), (9, 2095132), (12, 1571349), (13, 1450476), (18, 1047566), (26, 725238), (36, 523783), (39, 483492), (43, 438516), (52, 362619), (78, 241746), (86, 219258), (117, 161164), (129, 146172), (156, 120873), (172, 109629), (234, 80582), (258, 73086), (387, 48724), (468, 40291), (516, 36543), (559, 33732), (774, 24362), (937, 20124), (1118, 16866), (1548, 12181), (1677, 11244), (1874, 10062), (2236, 8433), (2811, 6708), (3354, 5622), (3748, 5031)]