21022664

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10639}}^1$

素因数の和:10677

約数の個数: 32

約数和(自身を含む): 44688000

約数和(自身を除く): 23665336

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10639, 21278, 42556, 85112, 138307, 202141, 276614, 404282, 553228, 808564, 1106456, 1617128, 2627833, 5255666, 10511332, 21022664]

約数ペア:

[(1, 21022664), (2, 10511332), (4, 5255666), (8, 2627833), (13, 1617128), (19, 1106456), (26, 808564), (38, 553228), (52, 404282), (76, 276614), (104, 202141), (152, 138307), (247, 85112), (494, 42556), (988, 21278), (1976, 10639)]