19178172

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1019

約数の個数: 72

約数和(自身を含む): 53477424

約数和(自身を除く): 34299252

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, 953, 1118, 1548, 1677, 1906, 2236, 2859, 3354, 3812, 5031, 5718, 6708, 8577, 10062, 11436, 12389, 17154, 20124, 24778, 34308, 37167, 40979, 49556, 74334, 81958, 111501, 122937, 148668, 163916, 223002, 245874, 368811, 446004, 491748, 532727, 737622, 1065454, 1475244, 1598181, 2130908, 3196362, 4794543, 6392724, 9589086, 19178172]

約数ペア:

[(1, 19178172), (2, 9589086), (3, 6392724), (4, 4794543), (6, 3196362), (9, 2130908), (12, 1598181), (13, 1475244), (18, 1065454), (26, 737622), (36, 532727), (39, 491748), (43, 446004), (52, 368811), (78, 245874), (86, 223002), (117, 163916), (129, 148668), (156, 122937), (172, 111501), (234, 81958), (258, 74334), (387, 49556), (468, 40979), (516, 37167), (559, 34308), (774, 24778), (953, 20124), (1118, 17154), (1548, 12389), (1677, 11436), (1906, 10062), (2236, 8577), (2859, 6708), (3354, 5718), (3812, 5031)]