18161728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:371

約数の個数: 56

約数和(自身を含む): 39428928

約数和(自身を除く): 21267200

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 83, 104, 166, 208, 263, 332, 416, 526, 664, 832, 1052, 1079, 1328, 2104, 2158, 2656, 3419, 4208, 4316, 5312, 6838, 8416, 8632, 13676, 16832, 17264, 21829, 27352, 34528, 43658, 54704, 69056, 87316, 109408, 174632, 218816, 283777, 349264, 567554, 698528, 1135108, 1397056, 2270216, 4540432, 9080864, 18161728]

約数ペア:

[(1, 18161728), (2, 9080864), (4, 4540432), (8, 2270216), (13, 1397056), (16, 1135108), (26, 698528), (32, 567554), (52, 349264), (64, 283777), (83, 218816), (104, 174632), (166, 109408), (208, 87316), (263, 69056), (332, 54704), (416, 43658), (526, 34528), (664, 27352), (832, 21829), (1052, 17264), (1079, 16832), (1328, 13676), (2104, 8632), (2158, 8416), (2656, 6838), (3419, 5312), (4208, 4316)]