21605487

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 32306688

約数和(自身を除く): 10701201

約数列:

[1, 3, 17, 23, 51, 69, 113, 163, 339, 391, 489, 1173, 1921, 2599, 2771, 3749, 5763, 7797, 8313, 11247, 18419, 44183, 55257, 63733, 132549, 191199, 313123, 423637, 939369, 1270911, 7201829, 21605487]

約数ペア:

[(1, 21605487), (3, 7201829), (17, 1270911), (23, 939369), (51, 423637), (69, 313123), (113, 191199), (163, 132549), (339, 63733), (391, 55257), (489, 44183), (1173, 18419), (1921, 11247), (2599, 8313), (2771, 7797), (3749, 5763)]