20365695

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:981

約数の個数: 64

約数和(自身を含む): 43223040

約数和(自身を除く): 22857345

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 161, 189, 207, 315, 345, 483, 621, 805, 937, 945, 1035, 1449, 2415, 2811, 3105, 4347, 4685, 6559, 7245, 8433, 14055, 19677, 21551, 21735, 25299, 32795, 42165, 59031, 64653, 98385, 107755, 126495, 150857, 177093, 193959, 295155, 323265, 452571, 581877, 754285, 885465, 969795, 1357713, 2262855, 2909385, 4073139, 6788565, 20365695]

約数ペア:

[(1, 20365695), (3, 6788565), (5, 4073139), (7, 2909385), (9, 2262855), (15, 1357713), (21, 969795), (23, 885465), (27, 754285), (35, 581877), (45, 452571), (63, 323265), (69, 295155), (105, 193959), (115, 177093), (135, 150857), (161, 126495), (189, 107755), (207, 98385), (315, 64653), (345, 59031), (483, 42165), (621, 32795), (805, 25299), (937, 21735), (945, 21551), (1035, 19677), (1449, 14055), (2415, 8433), (2811, 7245), (3105, 6559), (4347, 4685)]