21893172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{991}}^1$

素因数の和:1268

約数の個数: 48

約数和(自身を含む): 58662912

約数和(自身を除く): 36769740

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 263, 526, 789, 991, 1052, 1578, 1841, 1982, 2973, 3156, 3682, 3964, 5523, 5946, 6937, 7364, 11046, 11892, 13874, 20811, 22092, 27748, 41622, 83244, 260633, 521266, 781899, 1042532, 1563798, 1824431, 3127596, 3648862, 5473293, 7297724, 10946586, 21893172]

約数ペア:

[(1, 21893172), (2, 10946586), (3, 7297724), (4, 5473293), (6, 3648862), (7, 3127596), (12, 1824431), (14, 1563798), (21, 1042532), (28, 781899), (42, 521266), (84, 260633), (263, 83244), (526, 41622), (789, 27748), (991, 22092), (1052, 20811), (1578, 13874), (1841, 11892), (1982, 11046), (2973, 7364), (3156, 6937), (3682, 5946), (3964, 5523)]