21648520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23531}}^1$

素因数の和:23565

約数の個数: 32

約数和(自身を含む): 50829120

約数和(自身を除く): 29180600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23531, 47062, 94124, 117655, 188248, 235310, 470620, 541213, 941240, 1082426, 2164852, 2706065, 4329704, 5412130, 10824260, 21648520]

約数ペア:

[(1, 21648520), (2, 10824260), (4, 5412130), (5, 4329704), (8, 2706065), (10, 2164852), (20, 1082426), (23, 941240), (40, 541213), (46, 470620), (92, 235310), (115, 188248), (184, 117655), (230, 94124), (460, 47062), (920, 23531)]