28125747

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{571}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 43931888

約数和(自身を除く): 15806141

約数列:

[1, 3, 9, 13, 39, 117, 421, 571, 1263, 1713, 3789, 5139, 5473, 7423, 16419, 22269, 49257, 66807, 240391, 721173, 2163519, 3125083, 9375249, 28125747]

約数ペア:

[(1, 28125747), (3, 9375249), (9, 3125083), (13, 2163519), (39, 721173), (117, 240391), (421, 66807), (571, 49257), (1263, 22269), (1713, 16419), (3789, 7423), (5139, 5473)]