20963295

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 39143520

約数和(自身を除く): 18180225

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 67, 85, 153, 201, 255, 335, 409, 603, 765, 1005, 1139, 1227, 2045, 3015, 3417, 3681, 5695, 6135, 6953, 10251, 17085, 18405, 20859, 27403, 34765, 51255, 62577, 82209, 104295, 137015, 246627, 312885, 411045, 465851, 1233135, 1397553, 2329255, 4192659, 6987765, 20963295]

約数ペア:

[(1, 20963295), (3, 6987765), (5, 4192659), (9, 2329255), (15, 1397553), (17, 1233135), (45, 465851), (51, 411045), (67, 312885), (85, 246627), (153, 137015), (201, 104295), (255, 82209), (335, 62577), (409, 51255), (603, 34765), (765, 27403), (1005, 20859), (1139, 18405), (1227, 17085), (2045, 10251), (3015, 6953), (3417, 6135), (3681, 5695)]