888889743

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 1534830336

約数和(自身を除く): 645940593

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 173, 183, 191, 427, 441, 519, 549, 573, 1211, 1281, 1337, 1557, 1719, 2989, 3633, 3843, 4011, 8477, 8967, 9359, 10553, 10899, 11651, 12033, 25431, 26901, 28077, 31659, 33043, 34953, 73871, 76293, 81557, 84231, 94977, 99129, 104859, 221613, 231301, 244671, 297387, 517097, 570899, 664839, 693903, 734013, 1551291, 1619107, 1712697, 2015623, 2081709, 4653873, 4857321, 5138091, 6046869, 14109361, 14571963, 18140607, 42328083, 98765527, 126984249, 296296581, 888889743]

約数ペア:

[(1, 888889743), (3, 296296581), (7, 126984249), (9, 98765527), (21, 42328083), (49, 18140607), (61, 14571963), (63, 14109361), (147, 6046869), (173, 5138091), (183, 4857321), (191, 4653873), (427, 2081709), (441, 2015623), (519, 1712697), (549, 1619107), (573, 1551291), (1211, 734013), (1281, 693903), (1337, 664839), (1557, 570899), (1719, 517097), (2989, 297387), (3633, 244671), (3843, 231301), (4011, 221613), (8477, 104859), (8967, 99129), (9359, 94977), (10553, 84231), (10899, 81557), (11651, 76293), (12033, 73871), (25431, 34953), (26901, 33043), (28077, 31659)]