21167019952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{158759}}^1$

素因数の和:159421

約数の個数: 40

約数和(自身を含む): 44234981280

約数和(自身を除く): 23067961328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 641, 1282, 2564, 5128, 8333, 10256, 16666, 33332, 66664, 133328, 158759, 317518, 635036, 1270072, 2063867, 2540144, 4127734, 8255468, 16510936, 33021872, 101764519, 203529038, 407058076, 814116152, 1322938747, 1628232304, 2645877494, 5291754988, 10583509976, 21167019952]

約数ペア:

[(1, 21167019952), (2, 10583509976), (4, 5291754988), (8, 2645877494), (13, 1628232304), (16, 1322938747), (26, 814116152), (52, 407058076), (104, 203529038), (208, 101764519), (641, 33021872), (1282, 16510936), (2564, 8255468), (5128, 4127734), (8333, 2540144), (10256, 2063867), (16666, 1270072), (33332, 635036), (66664, 317518), (133328, 158759)]