21145754

素因数分解:

$2^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1699}}^1$

素因数の和:1842

約数の個数: 24

約数和(自身を含む): 37209600

約数和(自身を除く): 16063846

約数列:

[1, 2, 7, 14, 49, 98, 127, 254, 889, 1699, 1778, 3398, 6223, 11893, 12446, 23786, 83251, 166502, 215773, 431546, 1510411, 3020822, 10572877, 21145754]

約数ペア:

[(1, 21145754), (2, 10572877), (7, 3020822), (14, 1510411), (49, 431546), (98, 215773), (127, 166502), (254, 83251), (889, 23786), (1699, 12446), (1778, 11893), (3398, 6223)]