21093430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{977}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 40559616

約数和(自身を除く): 19466186

約数列:

[1, 2, 5, 10, 17, 34, 85, 127, 170, 254, 635, 977, 1270, 1954, 2159, 4318, 4885, 9770, 10795, 16609, 21590, 33218, 83045, 124079, 166090, 248158, 620395, 1240790, 2109343, 4218686, 10546715, 21093430]

約数ペア:

[(1, 21093430), (2, 10546715), (5, 4218686), (10, 2109343), (17, 1240790), (34, 620395), (85, 248158), (127, 166090), (170, 124079), (254, 83045), (635, 33218), (977, 21590), (1270, 16609), (1954, 10795), (2159, 9770), (4318, 4885)]