18899830

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13597}}^1$

素因数の和:13743

約数の個数: 16

約数和(自身を含む): 34266960

約数和(自身を除く): 15367130

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 13597, 27194, 67985, 135970, 1889983, 3779966, 9449915, 18899830]

約数ペア:

[(1, 18899830), (2, 9449915), (5, 3779966), (10, 1889983), (139, 135970), (278, 67985), (695, 27194), (1390, 13597)]