19971896

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5323}}^1$

素因数の和:5403

約数の個数: 32

約数和(自身を含む): 43443840

約数和(自身を除く): 23471944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5323, 10646, 21292, 37261, 42584, 74522, 149044, 298088, 356641, 713282, 1426564, 2496487, 2853128, 4992974, 9985948, 19971896]

約数ペア:

[(1, 19971896), (2, 9985948), (4, 4992974), (7, 2853128), (8, 2496487), (14, 1426564), (28, 713282), (56, 356641), (67, 298088), (134, 149044), (268, 74522), (469, 42584), (536, 37261), (938, 21292), (1876, 10646), (3752, 5323)]