272489721

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{1877}}^1$

素因数の和:2141

約数の個数: 32

約数和(自身を含む): 430768128

約数和(自身を除く): 158278407

約数列:

[1, 3, 7, 21, 31, 93, 217, 223, 651, 669, 1561, 1877, 4683, 5631, 6913, 13139, 20739, 39417, 48391, 58187, 145173, 174561, 407309, 418571, 1221927, 1255713, 2929997, 8789991, 12975701, 38927103, 90829907, 272489721]

約数ペア:

[(1, 272489721), (3, 90829907), (7, 38927103), (21, 12975701), (31, 8789991), (93, 2929997), (217, 1255713), (223, 1221927), (651, 418571), (669, 407309), (1561, 174561), (1877, 145173), (4683, 58187), (5631, 48391), (6913, 39417), (13139, 20739)]