28373247

素因数分解:

$3^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:489

約数の個数: 40

約数和(自身を含む): 48895616

約数和(自身を除く): 20522369

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 163, 189, 307, 489, 567, 921, 1141, 1467, 2149, 2763, 3423, 4401, 6447, 8289, 10269, 13203, 19341, 24867, 30807, 50041, 58023, 92421, 150123, 174069, 350287, 450369, 1050861, 1351107, 3152583, 4053321, 9457749, 28373247]

約数ペア:

[(1, 28373247), (3, 9457749), (7, 4053321), (9, 3152583), (21, 1351107), (27, 1050861), (63, 450369), (81, 350287), (163, 174069), (189, 150123), (307, 92421), (489, 58023), (567, 50041), (921, 30807), (1141, 24867), (1467, 19341), (2149, 13203), (2763, 10269), (3423, 8289), (4401, 6447)]