21959512

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2647}}^1$

素因数の和:2731

約数の個数: 32

約数和(自身を含む): 44327520

約数和(自身を除く): 22368008

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2647, 4148, 5294, 8296, 10588, 21176, 44999, 89998, 161467, 179996, 322934, 359992, 645868, 1291736, 2744939, 5489878, 10979756, 21959512]

約数ペア:

[(1, 21959512), (2, 10979756), (4, 5489878), (8, 2744939), (17, 1291736), (34, 645868), (61, 359992), (68, 322934), (122, 179996), (136, 161467), (244, 89998), (488, 44999), (1037, 21176), (2074, 10588), (2647, 8296), (4148, 5294)]