216950115

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{21881}}^1$

素因数の和:22550

約数の個数: 16

約数和(自身を含む): 347661216

約数和(自身を除く): 130711101

約数列:

[1, 3, 5, 15, 661, 1983, 3305, 9915, 21881, 65643, 109405, 328215, 14463341, 43390023, 72316705, 216950115]

約数ペア:

[(1, 216950115), (3, 72316705), (5, 43390023), (15, 14463341), (661, 328215), (1983, 109405), (3305, 65643), (9915, 21881)]