199958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 16

約数和(自身を含む): 334800

約数和(自身を除く): 134842

約数列:

[1, 2, 11, 22, 61, 122, 149, 298, 671, 1342, 1639, 3278, 9089, 18178, 99979, 199958]

約数ペア:

[(1, 199958), (2, 99979), (11, 18178), (22, 9089), (61, 3278), (122, 1639), (149, 1342), (298, 671)]