21215154

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{153733}}^1$

素因数の和:153761

約数の個数: 16

約数和(自身を含む): 44275392

約数和(自身を除く): 23060238

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 153733, 307466, 461199, 922398, 3535859, 7071718, 10607577, 21215154]

約数ペア:

[(1, 21215154), (2, 10607577), (3, 7071718), (6, 3535859), (23, 922398), (46, 461199), (69, 307466), (138, 153733)]