19982476

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{161149}}^1$

素因数の和:161184

約数の個数: 12

約数和(自身を含む): 36097600

約数和(自身を除く): 16115124

約数列:

[1, 2, 4, 31, 62, 124, 161149, 322298, 644596, 4995619, 9991238, 19982476]

約数ペア:

[(1, 19982476), (2, 9991238), (4, 4995619), (31, 644596), (62, 322298), (124, 161149)]