21441224

素因数分解:

$2^3\times 7^2\times {\mathrm{83}}^1\times {\mathrm{659}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 25959976

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 83, 98, 166, 196, 332, 392, 581, 659, 664, 1162, 1318, 2324, 2636, 4067, 4613, 4648, 5272, 8134, 9226, 16268, 18452, 32291, 32536, 36904, 54697, 64582, 109394, 129164, 218788, 258328, 382879, 437576, 765758, 1531516, 2680153, 3063032, 5360306, 10720612, 21441224]

約数ペア:

[(1, 21441224), (2, 10720612), (4, 5360306), (7, 3063032), (8, 2680153), (14, 1531516), (28, 765758), (49, 437576), (56, 382879), (83, 258328), (98, 218788), (166, 129164), (196, 109394), (332, 64582), (392, 54697), (581, 36904), (659, 32536), (664, 32291), (1162, 18452), (1318, 16268), (2324, 9226), (2636, 8134), (4067, 5272), (4613, 4648)]