21203568

素因数分解:

$2^4\times 3^2\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:886

約数の個数: 60

約数和(自身を含む): 59692360

約数和(自身を除く): 38488792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 229, 458, 643, 687, 916, 1286, 1374, 1832, 1929, 2061, 2572, 2748, 3664, 3858, 4122, 5144, 5496, 5787, 7716, 8244, 10288, 10992, 11574, 15432, 16488, 23148, 30864, 32976, 46296, 92592, 147247, 294494, 441741, 588988, 883482, 1177976, 1325223, 1766964, 2355952, 2650446, 3533928, 5300892, 7067856, 10601784, 21203568]

約数ペア:

[(1, 21203568), (2, 10601784), (3, 7067856), (4, 5300892), (6, 3533928), (8, 2650446), (9, 2355952), (12, 1766964), (16, 1325223), (18, 1177976), (24, 883482), (36, 588988), (48, 441741), (72, 294494), (144, 147247), (229, 92592), (458, 46296), (643, 32976), (687, 30864), (916, 23148), (1286, 16488), (1374, 15432), (1832, 11574), (1929, 10992), (2061, 10288), (2572, 8244), (2748, 7716), (3664, 5787), (3858, 5496), (4122, 5144)]