20686402

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 36014400

約数和(自身を除く): 15327998

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 409, 418, 818, 1331, 2299, 2662, 4499, 4598, 7771, 8998, 15542, 25289, 49489, 50578, 85481, 98978, 170962, 544379, 940291, 1088758, 1880582, 10343201, 20686402]

約数ペア:

[(1, 20686402), (2, 10343201), (11, 1880582), (19, 1088758), (22, 940291), (38, 544379), (121, 170962), (209, 98978), (242, 85481), (409, 50578), (418, 49489), (818, 25289), (1331, 15542), (2299, 8998), (2662, 7771), (4499, 4598)]