21279078

素因数分解:

$2^1\times 3^3\times {\mathrm{389}}^1\times {\mathrm{1013}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 47455200

約数和(自身を除く): 26176122

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389, 778, 1013, 1167, 2026, 2334, 3039, 3501, 6078, 7002, 9117, 10503, 18234, 21006, 27351, 54702, 394057, 788114, 1182171, 2364342, 3546513, 7093026, 10639539, 21279078]

約数ペア:

[(1, 21279078), (2, 10639539), (3, 7093026), (6, 3546513), (9, 2364342), (18, 1182171), (27, 788114), (54, 394057), (389, 54702), (778, 27351), (1013, 21006), (1167, 18234), (2026, 10503), (2334, 9117), (3039, 7002), (3501, 6078)]