20039201

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 25472832

約数和(自身を除く): 5433631

約数列:

[1, 7, 13, 41, 91, 131, 287, 533, 917, 1681, 1703, 3731, 5371, 11767, 11921, 21853, 37597, 69823, 152971, 220211, 488761, 1541477, 2862743, 20039201]

約数ペア:

[(1, 20039201), (7, 2862743), (13, 1541477), (41, 488761), (91, 220211), (131, 152971), (287, 69823), (533, 37597), (917, 21853), (1681, 11921), (1703, 11767), (3731, 5371)]