21818049

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 11276607

約数列:

[1, 3, 11, 33, 37, 107, 111, 167, 321, 407, 501, 1177, 1221, 1837, 3531, 3959, 5511, 6179, 11877, 17869, 18537, 43549, 53607, 67969, 130647, 196559, 203907, 589677, 661153, 1983459, 7272683, 21818049]

約数ペア:

[(1, 21818049), (3, 7272683), (11, 1983459), (33, 661153), (37, 589677), (107, 203907), (111, 196559), (167, 130647), (321, 67969), (407, 53607), (501, 43549), (1177, 18537), (1221, 17869), (1837, 11877), (3531, 6179), (3959, 5511)]