19916892

素因数分解:

$2^2\times 3^2\times {\mathrm{727}}^1\times {\mathrm{761}}^1$

素因数の和:1498

約数の個数: 36

約数和(自身を含む): 50480976

約数和(自身を除く): 30564084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 727, 761, 1454, 1522, 2181, 2283, 2908, 3044, 4362, 4566, 6543, 6849, 8724, 9132, 13086, 13698, 26172, 27396, 553247, 1106494, 1659741, 2212988, 3319482, 4979223, 6638964, 9958446, 19916892]

約数ペア:

[(1, 19916892), (2, 9958446), (3, 6638964), (4, 4979223), (6, 3319482), (9, 2212988), (12, 1659741), (18, 1106494), (36, 553247), (727, 27396), (761, 26172), (1454, 13698), (1522, 13086), (2181, 9132), (2283, 8724), (2908, 6849), (3044, 6543), (4362, 4566)]