21203793

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1427}}^1$

素因数の和:1573

約数の個数: 24

約数和(自身を含む): 33266688

約数和(自身を除く): 12062895

約数列:

[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1427, 1651, 4281, 4953, 12843, 14859, 18551, 55653, 166959, 181229, 543687, 1631061, 2355977, 7067931, 21203793]

約数ペア:

[(1, 21203793), (3, 7067931), (9, 2355977), (13, 1631061), (39, 543687), (117, 181229), (127, 166959), (381, 55653), (1143, 18551), (1427, 14859), (1651, 12843), (4281, 4953)]