21021064

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 19339256

約数列:

[1, 2, 4, 8, 97, 103, 194, 206, 263, 388, 412, 526, 776, 824, 1052, 2104, 9991, 19982, 25511, 27089, 39964, 51022, 54178, 79928, 102044, 108356, 204088, 216712, 2627633, 5255266, 10510532, 21021064]

約数ペア:

[(1, 21021064), (2, 10510532), (4, 5255266), (8, 2627633), (97, 216712), (103, 204088), (194, 108356), (206, 102044), (263, 79928), (388, 54178), (412, 51022), (526, 39964), (776, 27089), (824, 25511), (1052, 19982), (2104, 9991)]