211297725

素因数分解:

$3^2\times 5^2\times {\mathrm{503}}^1\times {\mathrm{1867}}^1$

素因数の和:2386

約数の個数: 36

約数和(自身を含む): 379413216

約数和(自身を除く): 168115491

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 503, 1509, 1867, 2515, 4527, 5601, 7545, 9335, 12575, 16803, 22635, 28005, 37725, 46675, 84015, 113175, 140025, 420075, 939101, 2817303, 4695505, 8451909, 14086515, 23477525, 42259545, 70432575, 211297725]

約数ペア:

[(1, 211297725), (3, 70432575), (5, 42259545), (9, 23477525), (15, 14086515), (25, 8451909), (45, 4695505), (75, 2817303), (225, 939101), (503, 420075), (1509, 140025), (1867, 113175), (2515, 84015), (4527, 46675), (5601, 37725), (7545, 28005), (9335, 22635), (12575, 16803)]