42168996981

素因数分解:

$3^9\times {\mathrm{139}}^1\times {\mathrm{15413}}^1$

素因数の和:15579

約数の個数: 40

約数和(自身を含む): 63711611040

約数和(自身を除く): 21542614059

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 729, 1251, 2187, 3753, 6561, 11259, 15413, 19683, 33777, 46239, 101331, 138717, 303993, 416151, 911979, 1248453, 2142407, 2735937, 3745359, 6427221, 11236077, 19281663, 33708231, 57844989, 101124693, 173534967, 303374079, 520604901, 1561814703, 4685444109, 14056332327, 42168996981]

約数ペア:

[(1, 42168996981), (3, 14056332327), (9, 4685444109), (27, 1561814703), (81, 520604901), (139, 303374079), (243, 173534967), (417, 101124693), (729, 57844989), (1251, 33708231), (2187, 19281663), (3753, 11236077), (6561, 6427221), (11259, 3745359), (15413, 2735937), (19683, 2142407), (33777, 1248453), (46239, 911979), (101331, 416151), (138717, 303993)]