21059091

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 10278189

約数列:

[1, 3, 9, 61, 89, 183, 267, 431, 549, 801, 1293, 3879, 5429, 16287, 26291, 38359, 48861, 78873, 115077, 236619, 345231, 2339899, 7019697, 21059091]

約数ペア:

[(1, 21059091), (3, 7019697), (9, 2339899), (61, 345231), (89, 236619), (183, 115077), (267, 78873), (431, 48861), (549, 38359), (801, 26291), (1293, 16287), (3879, 5429)]