20503318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 15139562

約数列:

[1, 2, 11, 19, 22, 38, 181, 209, 271, 362, 418, 542, 1991, 2981, 3439, 3982, 5149, 5962, 6878, 10298, 37829, 49051, 56639, 75658, 98102, 113278, 539561, 931969, 1079122, 1863938, 10251659, 20503318]

約数ペア:

[(1, 20503318), (2, 10251659), (11, 1863938), (19, 1079122), (22, 931969), (38, 539561), (181, 113278), (209, 98102), (271, 75658), (362, 56639), (418, 49051), (542, 37829), (1991, 10298), (2981, 6878), (3439, 5962), (3982, 5149)]