21070476

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:660

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 42796404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 47, 54, 63, 84, 94, 108, 126, 141, 188, 189, 252, 282, 329, 378, 423, 564, 593, 658, 756, 846, 987, 1186, 1269, 1316, 1692, 1779, 1974, 2372, 2538, 2961, 3558, 3948, 4151, 5076, 5337, 5922, 7116, 8302, 8883, 10674, 11844, 12453, 16011, 16604, 17766, 21348, 24906, 27871, 32022, 35532, 37359, 49812, 55742, 64044, 74718, 83613, 111484, 112077, 149436, 167226, 195097, 224154, 250839, 334452, 390194, 448308, 501678, 585291, 752517, 780388, 1003356, 1170582, 1505034, 1755873, 2341164, 3010068, 3511746, 5267619, 7023492, 10535238, 21070476]

約数ペア:

[(1, 21070476), (2, 10535238), (3, 7023492), (4, 5267619), (6, 3511746), (7, 3010068), (9, 2341164), (12, 1755873), (14, 1505034), (18, 1170582), (21, 1003356), (27, 780388), (28, 752517), (36, 585291), (42, 501678), (47, 448308), (54, 390194), (63, 334452), (84, 250839), (94, 224154), (108, 195097), (126, 167226), (141, 149436), (188, 112077), (189, 111484), (252, 83613), (282, 74718), (329, 64044), (378, 55742), (423, 49812), (564, 37359), (593, 35532), (658, 32022), (756, 27871), (846, 24906), (987, 21348), (1186, 17766), (1269, 16604), (1316, 16011), (1692, 12453), (1779, 11844), (1974, 10674), (2372, 8883), (2538, 8302), (2961, 7116), (3558, 5922), (3948, 5337), (4151, 5076)]