19661148

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 54822768

約数和(自身を除く): 35161620

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, 977, 1118, 1548, 1677, 1954, 2236, 2931, 3354, 3908, 5031, 5862, 6708, 8793, 10062, 11724, 12701, 17586, 20124, 25402, 35172, 38103, 42011, 50804, 76206, 84022, 114309, 126033, 152412, 168044, 228618, 252066, 378099, 457236, 504132, 546143, 756198, 1092286, 1512396, 1638429, 2184572, 3276858, 4915287, 6553716, 9830574, 19661148]

約数ペア:

[(1, 19661148), (2, 9830574), (3, 6553716), (4, 4915287), (6, 3276858), (9, 2184572), (12, 1638429), (13, 1512396), (18, 1092286), (26, 756198), (36, 546143), (39, 504132), (43, 457236), (52, 378099), (78, 252066), (86, 228618), (117, 168044), (129, 152412), (156, 126033), (172, 114309), (234, 84022), (258, 76206), (387, 50804), (468, 42011), (516, 38103), (559, 35172), (774, 25402), (977, 20124), (1118, 17586), (1548, 12701), (1677, 11724), (1954, 10062), (2236, 8793), (2931, 6708), (3354, 5862), (3908, 5031)]