21427674

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 46133472

約数和(自身を除く): 24705798

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 157, 258, 314, 471, 529, 942, 989, 1058, 1587, 1978, 2967, 3174, 3611, 5934, 6751, 7222, 10833, 13502, 20253, 21666, 22747, 40506, 45494, 68241, 83053, 136482, 155273, 166106, 249159, 310546, 465819, 498318, 931638, 3571279, 7142558, 10713837, 21427674]

約数ペア:

[(1, 21427674), (2, 10713837), (3, 7142558), (6, 3571279), (23, 931638), (43, 498318), (46, 465819), (69, 310546), (86, 249159), (129, 166106), (138, 155273), (157, 136482), (258, 83053), (314, 68241), (471, 45494), (529, 40506), (942, 22747), (989, 21666), (1058, 20253), (1587, 13502), (1978, 10833), (2967, 7222), (3174, 6751), (3611, 5934)]