21841960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78007}}^1$

素因数の和:78025

約数の個数: 32

約数和(自身を含む): 56165760

約数和(自身を除く): 34323800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78007, 156014, 312028, 390035, 546049, 624056, 780070, 1092098, 1560140, 2184196, 2730245, 3120280, 4368392, 5460490, 10920980, 21841960]

約数ペア:

[(1, 21841960), (2, 10920980), (4, 5460490), (5, 4368392), (7, 3120280), (8, 2730245), (10, 2184196), (14, 1560140), (20, 1092098), (28, 780070), (35, 624056), (40, 546049), (56, 390035), (70, 312028), (140, 156014), (280, 78007)]