16520985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 31868928

約数和(自身を除く): 15347943

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 911, 1209, 1395, 2015, 2733, 3627, 4555, 6045, 8199, 11843, 13665, 18135, 28241, 35529, 40995, 59215, 84723, 106587, 141205, 177645, 254169, 367133, 423615, 532935, 1101399, 1270845, 1835665, 3304197, 5506995, 16520985]

約数ペア:

[(1, 16520985), (3, 5506995), (5, 3304197), (9, 1835665), (13, 1270845), (15, 1101399), (31, 532935), (39, 423615), (45, 367133), (65, 254169), (93, 177645), (117, 141205), (155, 106587), (195, 84723), (279, 59215), (403, 40995), (465, 35529), (585, 28241), (911, 18135), (1209, 13665), (1395, 11843), (2015, 8199), (2733, 6045), (3627, 4555)]