21086838

素因数分解:

$2^1\times 3^3\times {\mathrm{79}}^1\times {\mathrm{4943}}^1$

素因数の和:5033

約数の個数: 32

約数和(自身を含む): 47462400

約数和(自身を除く): 26375562

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 158, 237, 474, 711, 1422, 2133, 4266, 4943, 9886, 14829, 29658, 44487, 88974, 133461, 266922, 390497, 780994, 1171491, 2342982, 3514473, 7028946, 10543419, 21086838]

約数ペア:

[(1, 21086838), (2, 10543419), (3, 7028946), (6, 3514473), (9, 2342982), (18, 1171491), (27, 780994), (54, 390497), (79, 266922), (158, 133461), (237, 88974), (474, 44487), (711, 29658), (1422, 14829), (2133, 9886), (4266, 4943)]