213751015

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{4051}}^1$

素因数の和:4290

約数の個数: 16

約数和(自身を含む): 262277856

約数和(自身を除く): 48526841

約数列:

[1, 5, 61, 173, 305, 865, 4051, 10553, 20255, 52765, 247111, 700823, 1235555, 3504115, 42750203, 213751015]

約数ペア:

[(1, 213751015), (5, 42750203), (61, 3504115), (173, 1235555), (305, 700823), (865, 247111), (4051, 52765), (10553, 20255)]