21080494064

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4377179}}^1$

素因数の和:4377237

約数の個数: 40

約数和(自身を含む): 47763788160

約数和(自身を除く): 26683294096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4816, 4377179, 8754358, 17508716, 30640253, 35017432, 61280506, 70034864, 122561012, 188218697, 245122024, 376437394, 490244048, 752874788, 1317530879, 1505749576, 2635061758, 3011499152, 5270123516, 10540247032, 21080494064]

約数ペア:

[(1, 21080494064), (2, 10540247032), (4, 5270123516), (7, 3011499152), (8, 2635061758), (14, 1505749576), (16, 1317530879), (28, 752874788), (43, 490244048), (56, 376437394), (86, 245122024), (112, 188218697), (172, 122561012), (301, 70034864), (344, 61280506), (602, 35017432), (688, 30640253), (1204, 17508716), (2408, 8754358), (4816, 4377179)]