19955518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 34875360

約数和(自身を除く): 14919842

約数列:

[1, 2, 11, 17, 22, 34, 187, 229, 233, 374, 458, 466, 2519, 2563, 3893, 3961, 5038, 5126, 7786, 7922, 42823, 43571, 53357, 85646, 87142, 106714, 586927, 907069, 1173854, 1814138, 9977759, 19955518]

約数ペア:

[(1, 19955518), (2, 9977759), (11, 1814138), (17, 1173854), (22, 907069), (34, 586927), (187, 106714), (229, 87142), (233, 85646), (374, 53357), (458, 43571), (466, 42823), (2519, 7922), (2563, 7786), (3893, 5126), (3961, 5038)]