21116992

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1493}}^1$

素因数の和:1535

約数の個数: 56

約数和(自身を含む): 47813976

約数和(自身を除く): 26696984

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1493, 1768, 2986, 3536, 5972, 7072, 11944, 14144, 19409, 23888, 25381, 38818, 47776, 50762, 77636, 95552, 101524, 155272, 203048, 310544, 329953, 406096, 621088, 659906, 812192, 1242176, 1319812, 1624384, 2639624, 5279248, 10558496, 21116992]

約数ペア:

[(1, 21116992), (2, 10558496), (4, 5279248), (8, 2639624), (13, 1624384), (16, 1319812), (17, 1242176), (26, 812192), (32, 659906), (34, 621088), (52, 406096), (64, 329953), (68, 310544), (104, 203048), (136, 155272), (208, 101524), (221, 95552), (272, 77636), (416, 50762), (442, 47776), (544, 38818), (832, 25381), (884, 23888), (1088, 19409), (1493, 14144), (1768, 11944), (2986, 7072), (3536, 5972)]