20930145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 35717760

約数和(自身を除く): 14787615

約数列:

[1, 3, 5, 15, 17, 51, 85, 211, 255, 389, 633, 1055, 1167, 1945, 3165, 3587, 5835, 6613, 10761, 17935, 19839, 33065, 53805, 82079, 99195, 246237, 410395, 1231185, 1395343, 4186029, 6976715, 20930145]

約数ペア:

[(1, 20930145), (3, 6976715), (5, 4186029), (15, 1395343), (17, 1231185), (51, 410395), (85, 246237), (211, 99195), (255, 82079), (389, 53805), (633, 33065), (1055, 19839), (1167, 17935), (1945, 10761), (3165, 6613), (3587, 5835)]