18699340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7727}}^1$

素因数の和:7758

約数の個数: 36

約数和(自身を含む): 43168608

約数和(自身を除く): 24469268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7727, 15454, 30908, 38635, 77270, 84997, 154540, 169994, 339988, 424985, 849970, 934967, 1699940, 1869934, 3739868, 4674835, 9349670, 18699340]

約数ペア:

[(1, 18699340), (2, 9349670), (4, 4674835), (5, 3739868), (10, 1869934), (11, 1699940), (20, 934967), (22, 849970), (44, 424985), (55, 339988), (110, 169994), (121, 154540), (220, 84997), (242, 77270), (484, 38635), (605, 30908), (1210, 15454), (2420, 7727)]