20972432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100829}}^1$

素因数の和:100850

約数の個数: 20

約数和(自身を含む): 43760220

約数和(自身を除く): 22787788

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100829, 201658, 403316, 806632, 1310777, 1613264, 2621554, 5243108, 10486216, 20972432]

約数ペア:

[(1, 20972432), (2, 10486216), (4, 5243108), (8, 2621554), (13, 1613264), (16, 1310777), (26, 806632), (52, 403316), (104, 201658), (208, 100829)]