21460172740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1\times {\mathrm{55819}}^1$

素因数の和:56284

約数の個数: 48

約数和(自身を含む): 46138579200

約数和(自身を除く): 24678406460

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 409, 470, 818, 940, 1636, 2045, 4090, 8180, 19223, 38446, 55819, 76892, 96115, 111638, 192230, 223276, 279095, 384460, 558190, 1116380, 2623493, 5246986, 10493972, 13117465, 22829971, 26234930, 45659942, 52469860, 91319884, 114149855, 228299710, 456599420, 1073008637, 2146017274, 4292034548, 5365043185, 10730086370, 21460172740]

約数ペア:

[(1, 21460172740), (2, 10730086370), (4, 5365043185), (5, 4292034548), (10, 2146017274), (20, 1073008637), (47, 456599420), (94, 228299710), (188, 114149855), (235, 91319884), (409, 52469860), (470, 45659942), (818, 26234930), (940, 22829971), (1636, 13117465), (2045, 10493972), (4090, 5246986), (8180, 2623493), (19223, 1116380), (38446, 558190), (55819, 384460), (76892, 279095), (96115, 223276), (111638, 192230)]