217680454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 351434880

約数和(自身を除く): 133754426

約数列:

[1, 2, 19, 38, 67, 134, 193, 386, 443, 886, 1273, 2546, 3667, 7334, 8417, 12931, 16834, 25862, 29681, 59362, 85499, 170998, 245689, 491378, 563939, 1127878, 1624481, 3248962, 5728433, 11456866, 108840227, 217680454]

約数ペア:

[(1, 217680454), (2, 108840227), (19, 11456866), (38, 5728433), (67, 3248962), (134, 1624481), (193, 1127878), (386, 563939), (443, 491378), (886, 245689), (1273, 170998), (2546, 85499), (3667, 59362), (7334, 29681), (8417, 25862), (12931, 16834)]