20933535

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 41040000

約数和(自身を除く): 20106465

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1499, 1995, 2793, 4497, 4655, 7495, 10493, 13965, 22485, 28481, 31479, 52465, 73451, 85443, 142405, 157395, 199367, 220353, 367255, 427215, 598101, 996835, 1101765, 1395569, 2990505, 4186707, 6977845, 20933535]

約数ペア:

[(1, 20933535), (3, 6977845), (5, 4186707), (7, 2990505), (15, 1395569), (19, 1101765), (21, 996835), (35, 598101), (49, 427215), (57, 367255), (95, 220353), (105, 199367), (133, 157395), (147, 142405), (245, 85443), (285, 73451), (399, 52465), (665, 31479), (735, 28481), (931, 22485), (1499, 13965), (1995, 10493), (2793, 7495), (4497, 4655)]