12920955

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 21946368

約数和(自身を除く): 9025413

約数列:

[1, 3, 5, 15, 31, 37, 93, 111, 155, 185, 465, 555, 751, 1147, 2253, 3441, 3755, 5735, 11265, 17205, 23281, 27787, 69843, 83361, 116405, 138935, 349215, 416805, 861397, 2584191, 4306985, 12920955]

約数ペア:

[(1, 12920955), (3, 4306985), (5, 2584191), (15, 861397), (31, 416805), (37, 349215), (93, 138935), (111, 116405), (155, 83361), (185, 69843), (465, 27787), (555, 23281), (751, 17205), (1147, 11265), (2253, 5735), (3441, 3755)]