20988726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{653}}^1$

素因数の和:1156

約数の個数: 32

約数和(自身を含む): 45957888

約数和(自身を除く): 24969162

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 487, 653, 974, 1306, 1461, 1959, 2922, 3918, 5357, 7183, 10714, 14366, 16071, 21549, 32142, 43098, 318011, 636022, 954033, 1908066, 3498121, 6996242, 10494363, 20988726]

約数ペア:

[(1, 20988726), (2, 10494363), (3, 6996242), (6, 3498121), (11, 1908066), (22, 954033), (33, 636022), (66, 318011), (487, 43098), (653, 32142), (974, 21549), (1306, 16071), (1461, 14366), (1959, 10714), (2922, 7183), (3918, 5357)]