20177895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1493}}^1$

素因数の和:1571

約数の個数: 32

約数和(自身を含む): 34852032

約数和(自身を除く): 14674137

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 1493, 2703, 4479, 4505, 7465, 13515, 22395, 25381, 76143, 79129, 126905, 237387, 380715, 395645, 1186935, 1345193, 4035579, 6725965, 20177895]

約数ペア:

[(1, 20177895), (3, 6725965), (5, 4035579), (15, 1345193), (17, 1186935), (51, 395645), (53, 380715), (85, 237387), (159, 126905), (255, 79129), (265, 76143), (795, 25381), (901, 22395), (1493, 13515), (2703, 7465), (4479, 4505)]