20981856

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31223}}^1$

素因数の和:31243

約数の個数: 48

約数和(自身を含む): 62947584

約数和(自身を除く): 41965728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31223, 62446, 93669, 124892, 187338, 218561, 249784, 374676, 437122, 499568, 655683, 749352, 874244, 999136, 1311366, 1498704, 1748488, 2622732, 2997408, 3496976, 5245464, 6993952, 10490928, 20981856]

約数ペア:

[(1, 20981856), (2, 10490928), (3, 6993952), (4, 5245464), (6, 3496976), (7, 2997408), (8, 2622732), (12, 1748488), (14, 1498704), (16, 1311366), (21, 999136), (24, 874244), (28, 749352), (32, 655683), (42, 499568), (48, 437122), (56, 374676), (84, 249784), (96, 218561), (112, 187338), (168, 124892), (224, 93669), (336, 62446), (672, 31223)]