19781964

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{28921}}^1$

素因数の和:28950

約数の個数: 36

約数和(自身を含む): 52638040

約数和(自身を除く): 32856076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 28921, 57842, 86763, 115684, 173526, 260289, 347052, 520578, 549499, 1041156, 1098998, 1648497, 2197996, 3296994, 4945491, 6593988, 9890982, 19781964]

約数ペア:

[(1, 19781964), (2, 9890982), (3, 6593988), (4, 4945491), (6, 3296994), (9, 2197996), (12, 1648497), (18, 1098998), (19, 1041156), (36, 549499), (38, 520578), (57, 347052), (76, 260289), (114, 173526), (171, 115684), (228, 86763), (342, 57842), (684, 28921)]