21867804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{811}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 63842688

約数和(自身を除く): 41974884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 107, 126, 214, 252, 321, 428, 642, 749, 811, 963, 1284, 1498, 1622, 1926, 2247, 2433, 2996, 3244, 3852, 4494, 4866, 5677, 6741, 7299, 8988, 9732, 11354, 13482, 14598, 17031, 22708, 26964, 29196, 34062, 51093, 68124, 86777, 102186, 173554, 204372, 260331, 347108, 520662, 607439, 780993, 1041324, 1214878, 1561986, 1822317, 2429756, 3123972, 3644634, 5466951, 7289268, 10933902, 21867804]

約数ペア:

[(1, 21867804), (2, 10933902), (3, 7289268), (4, 5466951), (6, 3644634), (7, 3123972), (9, 2429756), (12, 1822317), (14, 1561986), (18, 1214878), (21, 1041324), (28, 780993), (36, 607439), (42, 520662), (63, 347108), (84, 260331), (107, 204372), (126, 173554), (214, 102186), (252, 86777), (321, 68124), (428, 51093), (642, 34062), (749, 29196), (811, 26964), (963, 22708), (1284, 17031), (1498, 14598), (1622, 13482), (1926, 11354), (2247, 9732), (2433, 8988), (2996, 7299), (3244, 6741), (3852, 5677), (4494, 4866)]