21222290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4027}}^1$

素因数の和:4082

約数の個数: 32

約数和(自身を含む): 41762304

約数和(自身を除く): 20540014

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 4027, 5270, 8054, 20135, 40270, 68459, 124837, 136918, 249674, 342295, 624185, 684590, 1248370, 2122229, 4244458, 10611145, 21222290]

約数ペア:

[(1, 21222290), (2, 10611145), (5, 4244458), (10, 2122229), (17, 1248370), (31, 684590), (34, 624185), (62, 342295), (85, 249674), (155, 136918), (170, 124837), (310, 68459), (527, 40270), (1054, 20135), (2635, 8054), (4027, 5270)]