21989366

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1321}}^1$

素因数の和:1400

約数の個数: 32

約数和(自身を含む): 39977280

約数和(自身を除く): 17987914

約数列:

[1, 2, 7, 14, 29, 41, 58, 82, 203, 287, 406, 574, 1189, 1321, 2378, 2642, 8323, 9247, 16646, 18494, 38309, 54161, 76618, 108322, 268163, 379127, 536326, 758254, 1570669, 3141338, 10994683, 21989366]

約数ペア:

[(1, 21989366), (2, 10994683), (7, 3141338), (14, 1570669), (29, 758254), (41, 536326), (58, 379127), (82, 268163), (203, 108322), (287, 76618), (406, 54161), (574, 38309), (1189, 18494), (1321, 16646), (2378, 9247), (2642, 8323)]