18021465

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{743}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 39693888

約数和(自身を除く): 21672423

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 693, 735, 743, 1155, 1617, 2205, 2229, 2695, 3465, 3715, 4851, 5201, 6687, 8085, 8173, 11145, 15603, 24255, 24519, 26005, 33435, 36407, 40865, 46809, 57211, 73557, 78015, 109221, 122595, 171633, 182035, 234045, 286055, 327663, 367785, 400477, 514899, 546105, 858165, 1201431, 1638315, 2002385, 2574495, 3604293, 6007155, 18021465]

約数ペア:

[(1, 18021465), (3, 6007155), (5, 3604293), (7, 2574495), (9, 2002385), (11, 1638315), (15, 1201431), (21, 858165), (33, 546105), (35, 514899), (45, 400477), (49, 367785), (55, 327663), (63, 286055), (77, 234045), (99, 182035), (105, 171633), (147, 122595), (165, 109221), (231, 78015), (245, 73557), (315, 57211), (385, 46809), (441, 40865), (495, 36407), (539, 33435), (693, 26005), (735, 24519), (743, 24255), (1155, 15603), (1617, 11145), (2205, 8173), (2229, 8085), (2695, 6687), (3465, 5201), (3715, 4851)]