21696724

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12703}}^1$

素因数の和:12775

約数の個数: 24

約数和(自身を含む): 44108288

約数和(自身を除く): 22411564

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12703, 25406, 50812, 88921, 177842, 355684, 774883, 1549766, 3099532, 5424181, 10848362, 21696724]

約数ペア:

[(1, 21696724), (2, 10848362), (4, 5424181), (7, 3099532), (14, 1549766), (28, 774883), (61, 355684), (122, 177842), (244, 88921), (427, 50812), (854, 25406), (1708, 12703)]