19721316

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 49199360

約数和(自身を除く): 29478044

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 67, 76, 114, 134, 201, 228, 268, 402, 804, 1273, 1291, 2546, 2582, 3819, 3873, 5092, 5164, 7638, 7746, 15276, 15492, 24529, 49058, 73587, 86497, 98116, 147174, 172994, 259491, 294348, 345988, 518982, 1037964, 1643443, 3286886, 4930329, 6573772, 9860658, 19721316]

約数ペア:

[(1, 19721316), (2, 9860658), (3, 6573772), (4, 4930329), (6, 3286886), (12, 1643443), (19, 1037964), (38, 518982), (57, 345988), (67, 294348), (76, 259491), (114, 172994), (134, 147174), (201, 98116), (228, 86497), (268, 73587), (402, 49058), (804, 24529), (1273, 15492), (1291, 15276), (2546, 7746), (2582, 7638), (3819, 5164), (3873, 5092)]