21456496

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 21290768

約数列:

[1, 2, 4, 8, 16, 83, 107, 151, 166, 214, 302, 332, 428, 604, 664, 856, 1208, 1328, 1712, 2416, 8881, 12533, 16157, 17762, 25066, 32314, 35524, 50132, 64628, 71048, 100264, 129256, 142096, 200528, 258512, 1341031, 2682062, 5364124, 10728248, 21456496]

約数ペア:

[(1, 21456496), (2, 10728248), (4, 5364124), (8, 2682062), (16, 1341031), (83, 258512), (107, 200528), (151, 142096), (166, 129256), (214, 100264), (302, 71048), (332, 64628), (428, 50132), (604, 35524), (664, 32314), (856, 25066), (1208, 17762), (1328, 16157), (1712, 12533), (2416, 8881)]