31222179

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:233

約数の個数: 40

約数和(自身を含む): 48612960

約数和(自身を除く): 17390781

約数列:

[1, 3, 9, 27, 61, 71, 81, 89, 183, 213, 267, 549, 639, 801, 1647, 1917, 2403, 4331, 4941, 5429, 5751, 6319, 7209, 12993, 16287, 18957, 38979, 48861, 56871, 116937, 146583, 170613, 350811, 385459, 439749, 511839, 1156377, 3469131, 10407393, 31222179]

約数ペア:

[(1, 31222179), (3, 10407393), (9, 3469131), (27, 1156377), (61, 511839), (71, 439749), (81, 385459), (89, 350811), (183, 170613), (213, 146583), (267, 116937), (549, 56871), (639, 48861), (801, 38979), (1647, 18957), (1917, 16287), (2403, 12993), (4331, 7209), (4941, 6319), (5429, 5751)]