21486518

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{3323}}^1$

素因数の和:3439

約数の個数: 16

約数和(自身を含む): 33386256

約数和(自身を除く): 11899738

約数列:

[1, 2, 53, 61, 106, 122, 3233, 3323, 6466, 6646, 176119, 202703, 352238, 405406, 10743259, 21486518]

約数ペア:

[(1, 21486518), (2, 10743259), (53, 405406), (61, 352238), (106, 202703), (122, 176119), (3233, 6646), (3323, 6466)]