18636488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 22006072

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 83, 104, 127, 136, 166, 221, 254, 332, 442, 508, 664, 884, 1016, 1079, 1411, 1651, 1768, 2158, 2159, 2822, 3302, 4316, 4318, 5644, 6604, 8632, 8636, 10541, 11288, 13208, 17272, 18343, 21082, 28067, 36686, 42164, 56134, 73372, 84328, 112268, 137033, 146744, 179197, 224536, 274066, 358394, 548132, 716788, 1096264, 1433576, 2329561, 4659122, 9318244, 18636488]

約数ペア:

[(1, 18636488), (2, 9318244), (4, 4659122), (8, 2329561), (13, 1433576), (17, 1096264), (26, 716788), (34, 548132), (52, 358394), (68, 274066), (83, 224536), (104, 179197), (127, 146744), (136, 137033), (166, 112268), (221, 84328), (254, 73372), (332, 56134), (442, 42164), (508, 36686), (664, 28067), (884, 21082), (1016, 18343), (1079, 17272), (1411, 13208), (1651, 11288), (1768, 10541), (2158, 8636), (2159, 8632), (2822, 6604), (3302, 5644), (4316, 4318)]