21549385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30139}}^1$

素因数の和:30168

約数の個数: 16

約数和(自身を含む): 30381120

約数和(自身を除く): 8831735

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30139, 150695, 331529, 391807, 1657645, 1959035, 4309877, 21549385]

約数ペア:

[(1, 21549385), (5, 4309877), (11, 1959035), (13, 1657645), (55, 391807), (65, 331529), (143, 150695), (715, 30139)]