19994336

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{10243}}^1$

素因数の和:10314

約数の個数: 24

約数和(自身を含む): 40013064

約数和(自身を除く): 20018728

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 488, 976, 1952, 10243, 20486, 40972, 81944, 163888, 327776, 624823, 1249646, 2499292, 4998584, 9997168, 19994336]

約数ペア:

[(1, 19994336), (2, 9997168), (4, 4998584), (8, 2499292), (16, 1249646), (32, 624823), (61, 327776), (122, 163888), (244, 81944), (488, 40972), (976, 20486), (1952, 10243)]