20605545

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14771}}^1$

素因数の和:14813

約数の個数: 24

約数和(自身を含む): 36870912

約数和(自身を除く): 16265367

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14771, 44313, 73855, 132939, 221565, 457901, 664695, 1373703, 2289505, 4121109, 6868515, 20605545]

約数ペア:

[(1, 20605545), (3, 6868515), (5, 4121109), (9, 2289505), (15, 1373703), (31, 664695), (45, 457901), (93, 221565), (155, 132939), (279, 73855), (465, 44313), (1395, 14771)]