20966085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{659}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 42007680

約数和(自身を除く): 21041595

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 101, 105, 303, 315, 505, 659, 707, 909, 1515, 1977, 2121, 3295, 3535, 4545, 4613, 5931, 6363, 9885, 10605, 13839, 23065, 29655, 31815, 41517, 66559, 69195, 199677, 207585, 332795, 465913, 599031, 998385, 1397739, 2329565, 2995155, 4193217, 6988695, 20966085]

約数ペア:

[(1, 20966085), (3, 6988695), (5, 4193217), (7, 2995155), (9, 2329565), (15, 1397739), (21, 998385), (35, 599031), (45, 465913), (63, 332795), (101, 207585), (105, 199677), (303, 69195), (315, 66559), (505, 41517), (659, 31815), (707, 29655), (909, 23065), (1515, 13839), (1977, 10605), (2121, 9885), (3295, 6363), (3535, 5931), (4545, 4613)]