20855373

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 14119347

約数列:

[1, 3, 7, 11, 21, 33, 77, 137, 231, 411, 659, 959, 1507, 1977, 2877, 4521, 4613, 7249, 10549, 13839, 21747, 31647, 50743, 90283, 152229, 270849, 631981, 993113, 1895943, 2979339, 6951791, 20855373]

約数ペア:

[(1, 20855373), (3, 6951791), (7, 2979339), (11, 1895943), (21, 993113), (33, 631981), (77, 270849), (137, 152229), (231, 90283), (411, 50743), (659, 31647), (959, 21747), (1507, 13839), (1977, 10549), (2877, 7249), (4521, 4613)]