20638695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21165081

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 107, 165, 167, 231, 321, 385, 501, 535, 749, 835, 1155, 1169, 1177, 1605, 1837, 2247, 2505, 3507, 3531, 3745, 5511, 5845, 5885, 8239, 9185, 11235, 12859, 17535, 17655, 17869, 24717, 27555, 38577, 41195, 53607, 64295, 89345, 123585, 125083, 192885, 196559, 268035, 375249, 589677, 625415, 982795, 1375913, 1876245, 2948385, 4127739, 6879565, 20638695]

約数ペア:

[(1, 20638695), (3, 6879565), (5, 4127739), (7, 2948385), (11, 1876245), (15, 1375913), (21, 982795), (33, 625415), (35, 589677), (55, 375249), (77, 268035), (105, 196559), (107, 192885), (165, 125083), (167, 123585), (231, 89345), (321, 64295), (385, 53607), (501, 41195), (535, 38577), (749, 27555), (835, 24717), (1155, 17869), (1169, 17655), (1177, 17535), (1605, 12859), (1837, 11235), (2247, 9185), (2505, 8239), (3507, 5885), (3531, 5845), (3745, 5511)]