20815718

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7951}}^1$

素因数の和:7988

約数の個数: 32

約数和(自身を含む): 41223168

約数和(自身を除く): 20407450

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 1309, 2618, 7951, 15902, 55657, 87461, 111314, 135167, 174922, 270334, 612227, 946169, 1224454, 1486837, 1892338, 2973674, 10407859, 20815718]

約数ペア:

[(1, 20815718), (2, 10407859), (7, 2973674), (11, 1892338), (14, 1486837), (17, 1224454), (22, 946169), (34, 612227), (77, 270334), (119, 174922), (154, 135167), (187, 111314), (238, 87461), (374, 55657), (1309, 15902), (2618, 7951)]