21016395

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3797}}^1$

素因数の和:3852

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 17267445

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3797, 5535, 11391, 18985, 34173, 56955, 102519, 155677, 170865, 467031, 512595, 778385, 1401093, 2335155, 4203279, 7005465, 21016395]

約数ペア:

[(1, 21016395), (3, 7005465), (5, 4203279), (9, 2335155), (15, 1401093), (27, 778385), (41, 512595), (45, 467031), (123, 170865), (135, 155677), (205, 102519), (369, 56955), (615, 34173), (1107, 18985), (1845, 11391), (3797, 5535)]