81199818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644443}}^1$

素因数の和:644458

約数の個数: 24

約数和(自身を含む): 201066528

約数和(自身を除く): 119866710

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644443, 1288886, 1933329, 3866658, 4511101, 5799987, 9022202, 11599974, 13533303, 27066606, 40599909, 81199818]

約数ペア:

[(1, 81199818), (2, 40599909), (3, 27066606), (6, 13533303), (7, 11599974), (9, 9022202), (14, 5799987), (18, 4511101), (21, 3866658), (42, 1933329), (63, 1288886), (126, 644443)]