20368815

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 33587136

約数和(自身を除く): 13218321

約数列:

[1, 3, 5, 15, 61, 113, 183, 197, 305, 339, 565, 591, 915, 985, 1695, 2955, 6893, 12017, 20679, 22261, 34465, 36051, 60085, 66783, 103395, 111305, 180255, 333915, 1357921, 4073763, 6789605, 20368815]

約数ペア:

[(1, 20368815), (3, 6789605), (5, 4073763), (15, 1357921), (61, 333915), (113, 180255), (183, 111305), (197, 103395), (305, 66783), (339, 60085), (565, 36051), (591, 34465), (915, 22261), (985, 20679), (1695, 12017), (2955, 6893)]