21356415

素因数分解:

$3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2459}}^1$

素因数の和:2663

約数の個数: 24

約数和(自身を含む): 37224720

約数和(自身を除く): 15868305

約数列:

[1, 3, 5, 9, 15, 45, 193, 579, 965, 1737, 2459, 2895, 7377, 8685, 12295, 22131, 36885, 110655, 474587, 1423761, 2372935, 4271283, 7118805, 21356415]

約数ペア:

[(1, 21356415), (3, 7118805), (5, 4271283), (9, 2372935), (15, 1423761), (45, 474587), (193, 110655), (579, 36885), (965, 22131), (1737, 12295), (2459, 8685), (2895, 7377)]