20651872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37963}}^1$

素因数の和:37990

約数の個数: 24

約数和(自身を含む): 43051176

約数和(自身を除く): 22399304

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 37963, 75926, 151852, 303704, 607408, 645371, 1214816, 1290742, 2581484, 5162968, 10325936, 20651872]

約数ペア:

[(1, 20651872), (2, 10325936), (4, 5162968), (8, 2581484), (16, 1290742), (17, 1214816), (32, 645371), (34, 607408), (68, 303704), (136, 151852), (272, 75926), (544, 37963)]