19969928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{883}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 41052960

約数和(自身を除く): 21083032

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 257, 514, 883, 1028, 1766, 2056, 2827, 3532, 5654, 7064, 9713, 11308, 19426, 22616, 38852, 77704, 226931, 453862, 907724, 1815448, 2496241, 4992482, 9984964, 19969928]

約数ペア:

[(1, 19969928), (2, 9984964), (4, 4992482), (8, 2496241), (11, 1815448), (22, 907724), (44, 453862), (88, 226931), (257, 77704), (514, 38852), (883, 22616), (1028, 19426), (1766, 11308), (2056, 9713), (2827, 7064), (3532, 5654)]