21309595

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{503}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 26429760

約数和(自身を除く): 5120165

約数列:

[1, 5, 37, 185, 229, 503, 1145, 2515, 8473, 18611, 42365, 93055, 115187, 575935, 4261919, 21309595]

約数ペア:

[(1, 21309595), (5, 4261919), (37, 575935), (185, 115187), (229, 93055), (503, 42365), (1145, 18611), (2515, 8473)]