19681578

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{863}}^1$

素因数の和:1059

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 29379798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 181, 362, 543, 863, 1086, 1267, 1629, 1726, 2534, 2589, 3258, 3801, 5178, 6041, 7602, 7767, 11403, 12082, 15534, 18123, 22806, 36246, 54369, 108738, 156203, 312406, 468609, 937218, 1093421, 1405827, 2186842, 2811654, 3280263, 6560526, 9840789, 19681578]

約数ペア:

[(1, 19681578), (2, 9840789), (3, 6560526), (6, 3280263), (7, 2811654), (9, 2186842), (14, 1405827), (18, 1093421), (21, 937218), (42, 468609), (63, 312406), (126, 156203), (181, 108738), (362, 54369), (543, 36246), (863, 22806), (1086, 18123), (1267, 15534), (1629, 12082), (1726, 11403), (2534, 7767), (2589, 7602), (3258, 6041), (3801, 5178)]