18798923

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 25472160

約数和(自身を除く): 6673237

約数列:

[1, 11, 13, 17, 19, 37, 121, 143, 187, 209, 221, 247, 323, 407, 481, 629, 703, 1573, 2057, 2299, 2431, 2717, 3553, 4199, 4477, 5291, 6919, 7733, 8177, 9139, 11951, 26741, 29887, 39083, 46189, 58201, 76109, 85063, 89947, 100529, 131461, 155363, 508079, 989417, 1105819, 1446071, 1708993, 18798923]

約数ペア:

[(1, 18798923), (11, 1708993), (13, 1446071), (17, 1105819), (19, 989417), (37, 508079), (121, 155363), (143, 131461), (187, 100529), (209, 89947), (221, 85063), (247, 76109), (323, 58201), (407, 46189), (481, 39083), (629, 29887), (703, 26741), (1573, 11951), (2057, 9139), (2299, 8177), (2431, 7733), (2717, 6919), (3553, 5291), (4199, 4477)]