221189145

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{398539}}^1$

素因数の和:398584

約数の個数: 16

約数和(自身を含む): 363468480

約数和(自身を除く): 142279335

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 398539, 1195617, 1992695, 5978085, 14745943, 44237829, 73729715, 221189145]

約数ペア:

[(1, 221189145), (3, 73729715), (5, 44237829), (15, 14745943), (37, 5978085), (111, 1992695), (185, 1195617), (555, 398539)]