221970196

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{16903}}^1$

素因数の和:16988

約数の個数: 36

約数和(自身を含む): 458639328

約数和(自身を除く): 236669132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1876, 3283, 6566, 13132, 16903, 33806, 67612, 118321, 236642, 473284, 828247, 1132501, 1656494, 2265002, 3312988, 4530004, 7927507, 15855014, 31710028, 55492549, 110985098, 221970196]

約数ペア:

[(1, 221970196), (2, 110985098), (4, 55492549), (7, 31710028), (14, 15855014), (28, 7927507), (49, 4530004), (67, 3312988), (98, 2265002), (134, 1656494), (196, 1132501), (268, 828247), (469, 473284), (938, 236642), (1876, 118321), (3283, 67612), (6566, 33806), (13132, 16903)]