21718240

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{911}}^1$

素因数の和:1075

約数の個数: 48

約数和(自身を含む): 51710400

約数和(自身を除く): 29992160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 911, 1192, 1490, 1822, 2384, 2980, 3644, 4555, 4768, 5960, 7288, 9110, 11920, 14576, 18220, 23840, 29152, 36440, 72880, 135739, 145760, 271478, 542956, 678695, 1085912, 1357390, 2171824, 2714780, 4343648, 5429560, 10859120, 21718240]

約数ペア:

[(1, 21718240), (2, 10859120), (4, 5429560), (5, 4343648), (8, 2714780), (10, 2171824), (16, 1357390), (20, 1085912), (32, 678695), (40, 542956), (80, 271478), (149, 145760), (160, 135739), (298, 72880), (596, 36440), (745, 29152), (911, 23840), (1192, 18220), (1490, 14576), (1822, 11920), (2384, 9110), (2980, 7288), (3644, 5960), (4555, 4768)]