21605766

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5653}}^1$

素因数の和:5685

約数の個数: 48

約数和(自身を含む): 54142704

約数和(自身を除く): 32536938

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5653, 11306, 16959, 33918, 39571, 73489, 79142, 118713, 146978, 220467, 237426, 276997, 440934, 514423, 553994, 830991, 1028846, 1543269, 1661982, 3086538, 3600961, 7201922, 10802883, 21605766]

約数ペア:

[(1, 21605766), (2, 10802883), (3, 7201922), (6, 3600961), (7, 3086538), (13, 1661982), (14, 1543269), (21, 1028846), (26, 830991), (39, 553994), (42, 514423), (49, 440934), (78, 276997), (91, 237426), (98, 220467), (147, 146978), (182, 118713), (273, 79142), (294, 73489), (546, 39571), (637, 33918), (1274, 16959), (1911, 11306), (3822, 5653)]