221425305405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{21178891}}^1$

素因数の和:21178957

約数の個数: 32

約数和(自身を含む): 384269816448

約数和(自身を除く): 162844511043

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2091, 3485, 10455, 21178891, 63536673, 105894455, 317683365, 360041147, 868334531, 1080123441, 1800205735, 2605003593, 4341672655, 5400617205, 13025017965, 14761687027, 44285061081, 73808435135, 221425305405]

約数ペア:

[(1, 221425305405), (3, 73808435135), (5, 44285061081), (15, 14761687027), (17, 13025017965), (41, 5400617205), (51, 4341672655), (85, 2605003593), (123, 1800205735), (205, 1080123441), (255, 868334531), (615, 360041147), (697, 317683365), (2091, 105894455), (3485, 63536673), (10455, 21178891)]