20972692

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2671}}^1$

素因数の和:2839

約数の個数: 24

約数和(自身を含む): 39802112

約数和(自身を除く): 18829420

約数列:

[1, 2, 4, 13, 26, 52, 151, 302, 604, 1963, 2671, 3926, 5342, 7852, 10684, 34723, 69446, 138892, 403321, 806642, 1613284, 5243173, 10486346, 20972692]

約数ペア:

[(1, 20972692), (2, 10486346), (4, 5243173), (13, 1613284), (26, 806642), (52, 403321), (151, 138892), (302, 69446), (604, 34723), (1963, 10684), (2671, 7852), (3926, 5342)]