21000906410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17356121}}^1$

素因数の和:17356150

約数の個数: 24

約数和(自身を含む): 41550556068

約数和(自身を除く): 20549649658

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17356121, 34712242, 86780605, 173561210, 190917331, 381834662, 954586655, 1909173310, 2100090641, 4200181282, 10500453205, 21000906410]

約数ペア:

[(1, 21000906410), (2, 10500453205), (5, 4200181282), (10, 2100090641), (11, 1909173310), (22, 954586655), (55, 381834662), (110, 190917331), (121, 173561210), (242, 86780605), (605, 34712242), (1210, 17356121)]