21628335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{953}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 37091520

約数和(自身を除く): 15463185

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 953, 1335, 1513, 2859, 4539, 4765, 7565, 14295, 16201, 22695, 48603, 81005, 84817, 243015, 254451, 424085, 1272255, 1441889, 4325667, 7209445, 21628335]

約数ペア:

[(1, 21628335), (3, 7209445), (5, 4325667), (15, 1441889), (17, 1272255), (51, 424085), (85, 254451), (89, 243015), (255, 84817), (267, 81005), (445, 48603), (953, 22695), (1335, 16201), (1513, 14295), (2859, 7565), (4539, 4765)]