21169095

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 34810560

約数和(自身を除く): 13641465

約数列:

[1, 3, 5, 15, 89, 101, 157, 267, 303, 445, 471, 505, 785, 1335, 1515, 2355, 8989, 13973, 15857, 26967, 41919, 44945, 47571, 69865, 79285, 134835, 209595, 237855, 1411273, 4233819, 7056365, 21169095]

約数ペア:

[(1, 21169095), (3, 7056365), (5, 4233819), (15, 1411273), (89, 237855), (101, 209595), (157, 134835), (267, 79285), (303, 69865), (445, 47571), (471, 44945), (505, 41919), (785, 26967), (1335, 15857), (1515, 13973), (2355, 8989)]