21344778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 57972096

約数和(自身を除く): 36627318

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 83, 91, 117, 126, 157, 166, 182, 234, 249, 273, 314, 471, 498, 546, 581, 747, 819, 942, 1079, 1099, 1162, 1413, 1494, 1638, 1743, 2041, 2158, 2198, 2826, 3237, 3297, 3486, 4082, 5229, 6123, 6474, 6594, 7553, 9711, 9891, 10458, 12246, 13031, 14287, 15106, 18369, 19422, 19782, 22659, 26062, 28574, 36738, 39093, 42861, 45318, 67977, 78186, 85722, 91217, 117279, 128583, 135954, 169403, 182434, 234558, 257166, 273651, 338806, 508209, 547302, 820953, 1016418, 1185821, 1524627, 1641906, 2371642, 3049254, 3557463, 7114926, 10672389, 21344778]

約数ペア:

[(1, 21344778), (2, 10672389), (3, 7114926), (6, 3557463), (7, 3049254), (9, 2371642), (13, 1641906), (14, 1524627), (18, 1185821), (21, 1016418), (26, 820953), (39, 547302), (42, 508209), (63, 338806), (78, 273651), (83, 257166), (91, 234558), (117, 182434), (126, 169403), (157, 135954), (166, 128583), (182, 117279), (234, 91217), (249, 85722), (273, 78186), (314, 67977), (471, 45318), (498, 42861), (546, 39093), (581, 36738), (747, 28574), (819, 26062), (942, 22659), (1079, 19782), (1099, 19422), (1162, 18369), (1413, 15106), (1494, 14287), (1638, 13031), (1743, 12246), (2041, 10458), (2158, 9891), (2198, 9711), (2826, 7553), (3237, 6594), (3297, 6474), (3486, 6123), (4082, 5229)]