19998255

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 34191360

約数和(自身を除く): 14193105

約数列:

[1, 3, 5, 15, 29, 31, 87, 93, 145, 155, 435, 465, 899, 1483, 2697, 4449, 4495, 7415, 13485, 22245, 43007, 45973, 129021, 137919, 215035, 229865, 645105, 689595, 1333217, 3999651, 6666085, 19998255]

約数ペア:

[(1, 19998255), (3, 6666085), (5, 3999651), (15, 1333217), (29, 689595), (31, 645105), (87, 229865), (93, 215035), (145, 137919), (155, 129021), (435, 45973), (465, 43007), (899, 22245), (1483, 13485), (2697, 7415), (4449, 4495)]