21438135

素因数分解:

$3^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{419}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 16865865

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 379, 419, 1137, 1257, 1895, 2095, 3411, 3771, 5685, 6285, 10233, 11313, 17055, 18855, 51165, 56565, 158801, 476403, 794005, 1429209, 2382015, 4287627, 7146045, 21438135]

約数ペア:

[(1, 21438135), (3, 7146045), (5, 4287627), (9, 2382015), (15, 1429209), (27, 794005), (45, 476403), (135, 158801), (379, 56565), (419, 51165), (1137, 18855), (1257, 17055), (1895, 11313), (2095, 10233), (3411, 6285), (3771, 5685)]