20973888

素因数分解:

$2^6\times 3^2\times {\mathrm{13}}^1\times {\mathrm{2801}}^1$

素因数の和:2832

約数の個数: 84

約数和(自身を含む): 64765428

約数和(自身を除く): 43791540

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 144, 156, 192, 208, 234, 288, 312, 416, 468, 576, 624, 832, 936, 1248, 1872, 2496, 2801, 3744, 5602, 7488, 8403, 11204, 16806, 22408, 25209, 33612, 36413, 44816, 50418, 67224, 72826, 89632, 100836, 109239, 134448, 145652, 179264, 201672, 218478, 268896, 291304, 327717, 403344, 436956, 537792, 582608, 655434, 806688, 873912, 1165216, 1310868, 1613376, 1747824, 2330432, 2621736, 3495648, 5243472, 6991296, 10486944, 20973888]

約数ペア:

[(1, 20973888), (2, 10486944), (3, 6991296), (4, 5243472), (6, 3495648), (8, 2621736), (9, 2330432), (12, 1747824), (13, 1613376), (16, 1310868), (18, 1165216), (24, 873912), (26, 806688), (32, 655434), (36, 582608), (39, 537792), (48, 436956), (52, 403344), (64, 327717), (72, 291304), (78, 268896), (96, 218478), (104, 201672), (117, 179264), (144, 145652), (156, 134448), (192, 109239), (208, 100836), (234, 89632), (288, 72826), (312, 67224), (416, 50418), (468, 44816), (576, 36413), (624, 33612), (832, 25209), (936, 22408), (1248, 16806), (1872, 11204), (2496, 8403), (2801, 7488), (3744, 5602)]