21855210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56039}}^1$

素因数の和:56062

約数の個数: 32

約数和(自身を含む): 56488320

約数和(自身を除く): 34633110

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56039, 112078, 168117, 280195, 336234, 560390, 728507, 840585, 1457014, 1681170, 2185521, 3642535, 4371042, 7285070, 10927605, 21855210]

約数ペア:

[(1, 21855210), (2, 10927605), (3, 7285070), (5, 4371042), (6, 3642535), (10, 2185521), (13, 1681170), (15, 1457014), (26, 840585), (30, 728507), (39, 560390), (65, 336234), (78, 280195), (130, 168117), (195, 112078), (390, 56039)]