21146538

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4231}}^1$

素因数の和:4267

約数の個数: 48

約数和(自身を含む): 52104384

約数和(自身を除く): 30957846

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 2499, 4231, 4998, 8462, 12693, 25386, 29617, 59234, 71927, 88851, 143854, 177702, 207319, 215781, 414638, 431562, 503489, 621957, 1006978, 1243914, 1510467, 3020934, 3524423, 7048846, 10573269, 21146538]

約数ペア:

[(1, 21146538), (2, 10573269), (3, 7048846), (6, 3524423), (7, 3020934), (14, 1510467), (17, 1243914), (21, 1006978), (34, 621957), (42, 503489), (49, 431562), (51, 414638), (98, 215781), (102, 207319), (119, 177702), (147, 143854), (238, 88851), (294, 71927), (357, 59234), (714, 29617), (833, 25386), (1666, 12693), (2499, 8462), (4231, 4998)]