18959314

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 32814720

約数和(自身を除く): 13855406

約数列:

[1, 2, 11, 22, 23, 46, 89, 178, 253, 421, 506, 842, 979, 1958, 2047, 4094, 4631, 9262, 9683, 19366, 22517, 37469, 45034, 74938, 106513, 213026, 412159, 824318, 861787, 1723574, 9479657, 18959314]

約数ペア:

[(1, 18959314), (2, 9479657), (11, 1723574), (22, 861787), (23, 824318), (46, 412159), (89, 213026), (178, 106513), (253, 74938), (421, 45034), (506, 37469), (842, 22517), (979, 19366), (1958, 9683), (2047, 9262), (4094, 4631)]