20919255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1193}}^1$

素因数の和:1375

約数の個数: 32

約数和(自身を含む): 38513664

約数和(自身を除く): 17594409

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 167, 501, 835, 1169, 1193, 2505, 3507, 3579, 5845, 5965, 8351, 17535, 17895, 25053, 41755, 125265, 199231, 597693, 996155, 1394617, 2988465, 4183851, 6973085, 20919255]

約数ペア:

[(1, 20919255), (3, 6973085), (5, 4183851), (7, 2988465), (15, 1394617), (21, 996155), (35, 597693), (105, 199231), (167, 125265), (501, 41755), (835, 25053), (1169, 17895), (1193, 17535), (2505, 8351), (3507, 5965), (3579, 5845)]