21972854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^2$

素因数の和:272

約数の個数: 24

約数和(自身を含む): 35568840

約数和(自身を除く): 13595986

約数列:

[1, 2, 19, 38, 73, 89, 146, 178, 1387, 1691, 2774, 3382, 6497, 7921, 12994, 15842, 123443, 150499, 246886, 300998, 578233, 1156466, 10986427, 21972854]

約数ペア:

[(1, 21972854), (2, 10986427), (19, 1156466), (38, 578233), (73, 300998), (89, 246886), (146, 150499), (178, 123443), (1387, 15842), (1691, 12994), (2774, 7921), (3382, 6497)]