21339954

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 48048000

約数和(自身を除く): 26708046

約数列:

[1, 2, 3, 6, 9, 18, 43, 79, 86, 129, 158, 237, 258, 349, 387, 474, 698, 711, 774, 1047, 1422, 2094, 3141, 3397, 6282, 6794, 10191, 15007, 20382, 27571, 30014, 30573, 45021, 55142, 61146, 82713, 90042, 135063, 165426, 248139, 270126, 496278, 1185553, 2371106, 3556659, 7113318, 10669977, 21339954]

約数ペア:

[(1, 21339954), (2, 10669977), (3, 7113318), (6, 3556659), (9, 2371106), (18, 1185553), (43, 496278), (79, 270126), (86, 248139), (129, 165426), (158, 135063), (237, 90042), (258, 82713), (349, 61146), (387, 55142), (474, 45021), (698, 30573), (711, 30014), (774, 27571), (1047, 20382), (1422, 15007), (2094, 10191), (3141, 6794), (3397, 6282)]