21949785

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 46347840

約数和(自身を除く): 24398055

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 65, 81, 99, 117, 135, 143, 165, 195, 297, 351, 379, 405, 429, 495, 585, 715, 891, 1053, 1137, 1287, 1485, 1755, 1895, 2145, 3411, 3861, 4169, 4455, 4927, 5265, 5685, 6435, 10233, 11583, 12507, 14781, 17055, 19305, 20845, 24635, 30699, 37521, 44343, 51165, 54197, 57915, 62535, 73905, 112563, 133029, 153495, 162591, 187605, 221715, 270985, 337689, 399087, 487773, 562815, 665145, 812955, 1463319, 1688445, 1995435, 2438865, 4389957, 7316595, 21949785]

約数ペア:

[(1, 21949785), (3, 7316595), (5, 4389957), (9, 2438865), (11, 1995435), (13, 1688445), (15, 1463319), (27, 812955), (33, 665145), (39, 562815), (45, 487773), (55, 399087), (65, 337689), (81, 270985), (99, 221715), (117, 187605), (135, 162591), (143, 153495), (165, 133029), (195, 112563), (297, 73905), (351, 62535), (379, 57915), (405, 54197), (429, 51165), (495, 44343), (585, 37521), (715, 30699), (891, 24635), (1053, 20845), (1137, 19305), (1287, 17055), (1485, 14781), (1755, 12507), (1895, 11583), (2145, 10233), (3411, 6435), (3861, 5685), (4169, 5265), (4455, 4927)]