19663672

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 44605440

約数和(自身を除く): 24941768

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 56, 62, 94, 124, 188, 217, 241, 248, 329, 376, 434, 482, 658, 868, 964, 1316, 1457, 1687, 1736, 1928, 2632, 2914, 3374, 5828, 6748, 7471, 10199, 11327, 11656, 13496, 14942, 20398, 22654, 29884, 40796, 45308, 52297, 59768, 79289, 81592, 90616, 104594, 158578, 209188, 317156, 351137, 418376, 634312, 702274, 1404548, 2457959, 2809096, 4915918, 9831836, 19663672]

約数ペア:

[(1, 19663672), (2, 9831836), (4, 4915918), (7, 2809096), (8, 2457959), (14, 1404548), (28, 702274), (31, 634312), (47, 418376), (56, 351137), (62, 317156), (94, 209188), (124, 158578), (188, 104594), (217, 90616), (241, 81592), (248, 79289), (329, 59768), (376, 52297), (434, 45308), (482, 40796), (658, 29884), (868, 22654), (964, 20398), (1316, 14942), (1457, 13496), (1687, 11656), (1736, 11327), (1928, 10199), (2632, 7471), (2914, 6748), (3374, 5828)]