72604721

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{2801}}^1$

素因数の和:2861

約数の個数: 18

約数和(自身を含む): 88321842

約数和(自身を除く): 15717121

約数列:

[1, 7, 23, 49, 161, 529, 1127, 2801, 3703, 19607, 25921, 64423, 137249, 450961, 1481729, 3156727, 10372103, 72604721]

約数ペア:

[(1, 72604721), (7, 10372103), (23, 3156727), (49, 1481729), (161, 450961), (529, 137249), (1127, 64423), (2801, 25921), (3703, 19607)]