1639771917

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{3727}}^1$

素因数の和:3858

約数の個数: 48

約数和(自身を含む): 2641750272

約数和(自身を除く): 1001978355

約数列:

[1, 3, 7, 21, 41, 49, 73, 123, 147, 219, 287, 511, 861, 1533, 2009, 2993, 3577, 3727, 6027, 8979, 10731, 11181, 20951, 26089, 62853, 78267, 146657, 152807, 182623, 272071, 439971, 458421, 547869, 816213, 1069649, 1904497, 3208947, 5713491, 7487543, 11154911, 13331479, 22462629, 33464733, 39994437, 78084377, 234253131, 546590639, 1639771917]

約数ペア:

[(1, 1639771917), (3, 546590639), (7, 234253131), (21, 78084377), (41, 39994437), (49, 33464733), (73, 22462629), (123, 13331479), (147, 11154911), (219, 7487543), (287, 5713491), (511, 3208947), (861, 1904497), (1533, 1069649), (2009, 816213), (2993, 547869), (3577, 458421), (3727, 439971), (6027, 272071), (8979, 182623), (10731, 152807), (11181, 146657), (20951, 78267), (26089, 62853)]