21132880

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9109}}^1$

素因数の和:9151

約数の個数: 40

約数和(自身を含む): 50833800

約数和(自身を除く): 29700920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9109, 18218, 36436, 45545, 72872, 91090, 145744, 182180, 264161, 364360, 528322, 728720, 1056644, 1320805, 2113288, 2641610, 4226576, 5283220, 10566440, 21132880]

約数ペア:

[(1, 21132880), (2, 10566440), (4, 5283220), (5, 4226576), (8, 2641610), (10, 2113288), (16, 1320805), (20, 1056644), (29, 728720), (40, 528322), (58, 364360), (80, 264161), (116, 182180), (145, 145744), (232, 91090), (290, 72872), (464, 45545), (580, 36436), (1160, 18218), (2320, 9109)]