20950515

素因数分解:

$3^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{499}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 16489485

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 311, 499, 933, 1497, 1555, 2495, 2799, 4491, 4665, 7485, 8397, 13473, 13995, 22455, 41985, 67365, 155189, 465567, 775945, 1396701, 2327835, 4190103, 6983505, 20950515]

約数ペア:

[(1, 20950515), (3, 6983505), (5, 4190103), (9, 2327835), (15, 1396701), (27, 775945), (45, 465567), (135, 155189), (311, 67365), (499, 41985), (933, 22455), (1497, 13995), (1555, 13473), (2495, 8397), (2799, 7485), (4491, 4665)]