20609596

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1481}}^1$

素因数の和:1570

約数の個数: 36

約数和(自身を含む): 42574896

約数和(自身を除く): 21965300

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1481, 1988, 2962, 3479, 5924, 6958, 10367, 13916, 20734, 41468, 72569, 105151, 145138, 210302, 290276, 420604, 736057, 1472114, 2944228, 5152399, 10304798, 20609596]

約数ペア:

[(1, 20609596), (2, 10304798), (4, 5152399), (7, 2944228), (14, 1472114), (28, 736057), (49, 420604), (71, 290276), (98, 210302), (142, 145138), (196, 105151), (284, 72569), (497, 41468), (994, 20734), (1481, 13916), (1988, 10367), (2962, 6958), (3479, 5924)]