28134477

素因数分解:

$3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:638

約数の個数: 36

約数和(自身を含む): 47732256

約数和(自身を除く): 19597779

約数列:

[1, 3, 7, 9, 21, 49, 63, 131, 147, 393, 441, 487, 917, 1179, 1461, 2751, 3409, 4383, 6419, 8253, 10227, 19257, 23863, 30681, 57771, 63797, 71589, 191391, 214767, 446579, 574173, 1339737, 3126053, 4019211, 9378159, 28134477]

約数ペア:

[(1, 28134477), (3, 9378159), (7, 4019211), (9, 3126053), (21, 1339737), (49, 574173), (63, 446579), (131, 214767), (147, 191391), (393, 71589), (441, 63797), (487, 57771), (917, 30681), (1179, 23863), (1461, 19257), (2751, 10227), (3409, 8253), (4383, 6419)]