21565588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2664

約数の個数: 36

約数和(自身を含む): 43939476

約数和(自身を除く): 22373888

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2621, 4114, 5242, 8228, 10484, 28831, 44557, 57662, 89114, 115324, 178228, 317141, 490127, 634282, 980254, 1268564, 1960508, 5391397, 10782794, 21565588]

約数ペア:

[(1, 21565588), (2, 10782794), (4, 5391397), (11, 1960508), (17, 1268564), (22, 980254), (34, 634282), (44, 490127), (68, 317141), (121, 178228), (187, 115324), (242, 89114), (374, 57662), (484, 44557), (748, 28831), (2057, 10484), (2621, 8228), (4114, 5242)]