21662930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2089}}^1$

素因数の和:2174

約数の個数: 32

約数和(自身を含む): 41983920

約数和(自身を除く): 20320990

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2074, 2089, 4178, 5185, 10370, 10445, 20890, 35513, 71026, 127429, 177565, 254858, 355130, 637145, 1274290, 2166293, 4332586, 10831465, 21662930]

約数ペア:

[(1, 21662930), (2, 10831465), (5, 4332586), (10, 2166293), (17, 1274290), (34, 637145), (61, 355130), (85, 254858), (122, 177565), (170, 127429), (305, 71026), (610, 35513), (1037, 20890), (2074, 10445), (2089, 10370), (4178, 5185)]