21991746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3767}}^1$

素因数の和:3918

約数の個数: 32

約数和(自身を含む): 50641920

約数和(自身を除く): 28650174

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 139, 278, 417, 834, 973, 1946, 2919, 3767, 5838, 7534, 11301, 22602, 26369, 52738, 79107, 158214, 523613, 1047226, 1570839, 3141678, 3665291, 7330582, 10995873, 21991746]

約数ペア:

[(1, 21991746), (2, 10995873), (3, 7330582), (6, 3665291), (7, 3141678), (14, 1570839), (21, 1047226), (42, 523613), (139, 158214), (278, 79107), (417, 52738), (834, 26369), (973, 22602), (1946, 11301), (2919, 7534), (3767, 5838)]