21846105

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 43908480

約数和(自身を除く): 22062375

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 81, 85, 95, 135, 153, 167, 171, 255, 285, 323, 405, 459, 501, 513, 765, 835, 855, 969, 1377, 1503, 1539, 1615, 2295, 2505, 2565, 2839, 2907, 3173, 4509, 4845, 6885, 7515, 7695, 8517, 8721, 9519, 13527, 14195, 14535, 15865, 22545, 25551, 26163, 28557, 42585, 43605, 47595, 53941, 67635, 76653, 85671, 127755, 130815, 142785, 161823, 229959, 257013, 269705, 383265, 428355, 485469, 809115, 1149795, 1285065, 1456407, 2427345, 4369221, 7282035, 21846105]

約数ペア:

[(1, 21846105), (3, 7282035), (5, 4369221), (9, 2427345), (15, 1456407), (17, 1285065), (19, 1149795), (27, 809115), (45, 485469), (51, 428355), (57, 383265), (81, 269705), (85, 257013), (95, 229959), (135, 161823), (153, 142785), (167, 130815), (171, 127755), (255, 85671), (285, 76653), (323, 67635), (405, 53941), (459, 47595), (501, 43605), (513, 42585), (765, 28557), (835, 26163), (855, 25551), (969, 22545), (1377, 15865), (1503, 14535), (1539, 14195), (1615, 13527), (2295, 9519), (2505, 8721), (2565, 8517), (2839, 7695), (2907, 7515), (3173, 6885), (4509, 4845)]