27991815

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 46699200

約数和(自身を除く): 18707385

約数列:

[1, 3, 5, 15, 29, 87, 145, 229, 281, 435, 687, 843, 1145, 1405, 3435, 4215, 6641, 8149, 19923, 24447, 33205, 40745, 64349, 99615, 122235, 193047, 321745, 965235, 1866121, 5598363, 9330605, 27991815]

約数ペア:

[(1, 27991815), (3, 9330605), (5, 5598363), (15, 1866121), (29, 965235), (87, 321745), (145, 193047), (229, 122235), (281, 99615), (435, 64349), (687, 40745), (843, 33205), (1145, 24447), (1405, 19923), (3435, 8149), (4215, 6641)]