217622015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{6353}}^1$

素因数の和:6419

約数の個数: 32

約数和(自身を含む): 307431936

約数和(自身を除く): 89809921

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 403, 527, 1105, 2015, 2635, 6353, 6851, 31765, 34255, 82589, 108001, 196943, 412945, 540005, 984715, 1404013, 2560259, 3348031, 7020065, 12801295, 16740155, 43524403, 217622015]

約数ペア:

[(1, 217622015), (5, 43524403), (13, 16740155), (17, 12801295), (31, 7020065), (65, 3348031), (85, 2560259), (155, 1404013), (221, 984715), (403, 540005), (527, 412945), (1105, 196943), (2015, 108001), (2635, 82589), (6353, 34255), (6851, 31765)]