21059978

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{3251}}^1$

素因数の和:3373

約数の個数: 16

約数和(自身を含む): 32780160

約数和(自身を除く): 11720182

約数列:

[1, 2, 41, 79, 82, 158, 3239, 3251, 6478, 6502, 133291, 256829, 266582, 513658, 10529989, 21059978]

約数ペア:

[(1, 21059978), (2, 10529989), (41, 513658), (79, 266582), (82, 256829), (158, 133291), (3239, 6502), (3251, 6478)]