21553376

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 46103904

約数和(自身を除く): 24550528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 263, 394, 416, 526, 788, 1052, 1576, 2104, 2561, 3152, 3419, 4208, 5122, 6304, 6838, 8416, 10244, 13676, 20488, 27352, 40976, 51811, 54704, 81952, 103622, 109408, 207244, 414488, 673543, 828976, 1347086, 1657952, 2694172, 5388344, 10776688, 21553376]

約数ペア:

[(1, 21553376), (2, 10776688), (4, 5388344), (8, 2694172), (13, 1657952), (16, 1347086), (26, 828976), (32, 673543), (52, 414488), (104, 207244), (197, 109408), (208, 103622), (263, 81952), (394, 54704), (416, 51811), (526, 40976), (788, 27352), (1052, 20488), (1576, 13676), (2104, 10244), (2561, 8416), (3152, 6838), (3419, 6304), (4208, 5122)]