21959415

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5483}}^1$

素因数の和:5583

約数の個数: 24

約数和(自身を含む): 38497680

約数和(自身を除く): 16538265

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5483, 16449, 27415, 49347, 82245, 246735, 487987, 1463961, 2439935, 4391883, 7319805, 21959415]

約数ペア:

[(1, 21959415), (3, 7319805), (5, 4391883), (9, 2439935), (15, 1463961), (45, 487987), (89, 246735), (267, 82245), (445, 49347), (801, 27415), (1335, 16449), (4005, 5483)]