18762285

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 31306752

約数和(自身を除く): 12544467

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 257, 465, 471, 771, 785, 1285, 2355, 3855, 4867, 7967, 14601, 23901, 24335, 39835, 40349, 73005, 119505, 121047, 201745, 605235, 1250819, 3752457, 6254095, 18762285]

約数ペア:

[(1, 18762285), (3, 6254095), (5, 3752457), (15, 1250819), (31, 605235), (93, 201745), (155, 121047), (157, 119505), (257, 73005), (465, 40349), (471, 39835), (771, 24335), (785, 23901), (1285, 14601), (2355, 7967), (3855, 4867)]