21739558180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2029}}^1\times {\mathrm{31513}}^1$

素因数の和:33568

約数の個数: 48

約数和(自身を含む): 48363905520

約数和(自身を除く): 26624347340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2029, 4058, 8116, 10145, 20290, 31513, 34493, 40580, 63026, 68986, 126052, 137972, 157565, 172465, 315130, 344930, 535721, 630260, 689860, 1071442, 2142884, 2678605, 5357210, 10714420, 63939877, 127879754, 255759508, 319699385, 639398770, 1086977909, 1278797540, 2173955818, 4347911636, 5434889545, 10869779090, 21739558180]

約数ペア:

[(1, 21739558180), (2, 10869779090), (4, 5434889545), (5, 4347911636), (10, 2173955818), (17, 1278797540), (20, 1086977909), (34, 639398770), (68, 319699385), (85, 255759508), (170, 127879754), (340, 63939877), (2029, 10714420), (4058, 5357210), (8116, 2678605), (10145, 2142884), (20290, 1071442), (31513, 689860), (34493, 630260), (40580, 535721), (63026, 344930), (68986, 315130), (126052, 172465), (137972, 157565)]