19899495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5743}}^1$

素因数の和:5772

約数の個数: 48

約数和(自身を含む): 43011072

約数和(自身を除く): 23111577

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5743, 17229, 28715, 40201, 51687, 63173, 86145, 120603, 189519, 201005, 258435, 315865, 361809, 442211, 568557, 603015, 947595, 1326633, 1809045, 2211055, 2842785, 3979899, 6633165, 19899495]

約数ペア:

[(1, 19899495), (3, 6633165), (5, 3979899), (7, 2842785), (9, 2211055), (11, 1809045), (15, 1326633), (21, 947595), (33, 603015), (35, 568557), (45, 442211), (55, 361809), (63, 315865), (77, 258435), (99, 201005), (105, 189519), (165, 120603), (231, 86145), (315, 63173), (385, 51687), (495, 40201), (693, 28715), (1155, 17229), (3465, 5743)]