81478972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{21601}}^1$

素因数の和:21669

約数の個数: 24

約数和(自身を含む): 152423712

約数和(自身を除く): 70944740

約数列:

[1, 2, 4, 23, 41, 46, 82, 92, 164, 943, 1886, 3772, 21601, 43202, 86404, 496823, 885641, 993646, 1771282, 1987292, 3542564, 20369743, 40739486, 81478972]

約数ペア:

[(1, 81478972), (2, 40739486), (4, 20369743), (23, 3542564), (41, 1987292), (46, 1771282), (82, 993646), (92, 885641), (164, 496823), (943, 86404), (1886, 43202), (3772, 21601)]