20873895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3259}}^1$

素因数の和:3335

約数の個数: 32

約数和(自身を含む): 38807040

約数和(自身を除く): 17933145

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3259, 6405, 9777, 16295, 22813, 48885, 68439, 114065, 198799, 342195, 596397, 993995, 1391593, 2981985, 4174779, 6957965, 20873895]

約数ペア:

[(1, 20873895), (3, 6957965), (5, 4174779), (7, 2981985), (15, 1391593), (21, 993995), (35, 596397), (61, 342195), (105, 198799), (183, 114065), (305, 68439), (427, 48885), (915, 22813), (1281, 16295), (2135, 9777), (3259, 6405)]