18134996

素因数分解:

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

素因数の和:536

約数の個数: 36

約数和(自身を含む): 35359380

約数和(自身を除く): 17224384

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 421, 484, 842, 979, 1684, 1958, 3916, 4631, 9262, 10769, 18524, 21538, 37469, 43076, 50941, 74938, 101882, 149876, 203764, 412159, 824318, 1648636, 4533749, 9067498, 18134996]

約数ペア:

[(1, 18134996), (2, 9067498), (4, 4533749), (11, 1648636), (22, 824318), (44, 412159), (89, 203764), (121, 149876), (178, 101882), (242, 74938), (356, 50941), (421, 43076), (484, 37469), (842, 21538), (979, 18524), (1684, 10769), (1958, 9262), (3916, 4631)]