28927773

素因数分解:

$3^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:495

約数の個数: 40

約数和(自身を含む): 49848128

約数和(自身を除く): 20920355

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 163, 189, 313, 489, 567, 939, 1141, 1467, 2191, 2817, 3423, 4401, 6573, 8451, 10269, 13203, 19719, 25353, 30807, 51019, 59157, 92421, 153057, 177471, 357133, 459171, 1071399, 1377513, 3214197, 4132539, 9642591, 28927773]

約数ペア:

[(1, 28927773), (3, 9642591), (7, 4132539), (9, 3214197), (21, 1377513), (27, 1071399), (63, 459171), (81, 357133), (163, 177471), (189, 153057), (313, 92421), (489, 59157), (567, 51019), (939, 30807), (1141, 25353), (1467, 19719), (2191, 13203), (2817, 10269), (3423, 8451), (4401, 6573)]