221738505

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{1697}}^1$

素因数の和:2017

約数の個数: 32

約数和(自身を含む): 367746048

約数和(自身を除く): 146007543

約数列:

[1, 3, 5, 15, 31, 93, 155, 281, 465, 843, 1405, 1697, 4215, 5091, 8485, 8711, 25455, 26133, 43555, 52607, 130665, 157821, 263035, 476857, 789105, 1430571, 2384285, 7152855, 14782567, 44347701, 73912835, 221738505]

約数ペア:

[(1, 221738505), (3, 73912835), (5, 44347701), (15, 14782567), (31, 7152855), (93, 2384285), (155, 1430571), (281, 789105), (465, 476857), (843, 263035), (1405, 157821), (1697, 130665), (4215, 52607), (5091, 43555), (8485, 26133), (8711, 25455)]