21058768

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5507}}^1$

素因数の和:5754

約数の個数: 20

約数和(自身を含む): 40979520

約数和(自身を除く): 19920752

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5507, 11014, 22028, 44056, 88112, 1316173, 2632346, 5264692, 10529384, 21058768]

約数ペア:

[(1, 21058768), (2, 10529384), (4, 5264692), (8, 2632346), (16, 1316173), (239, 88112), (478, 44056), (956, 22028), (1912, 11014), (3824, 5507)]