16991928

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{12421}}^1$

素因数の和:12452

約数の個数: 48

約数和(自身を含む): 48445800

約数和(自身を除く): 31453872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 12421, 24842, 37263, 49684, 74526, 99368, 111789, 149052, 223578, 235999, 298104, 447156, 471998, 707997, 894312, 943996, 1415994, 1887992, 2123991, 2831988, 4247982, 5663976, 8495964, 16991928]

約数ペア:

[(1, 16991928), (2, 8495964), (3, 5663976), (4, 4247982), (6, 2831988), (8, 2123991), (9, 1887992), (12, 1415994), (18, 943996), (19, 894312), (24, 707997), (36, 471998), (38, 447156), (57, 298104), (72, 235999), (76, 223578), (114, 149052), (152, 111789), (171, 99368), (228, 74526), (342, 49684), (456, 37263), (684, 24842), (1368, 12421)]