21975018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2633}}^1$

素因数の和:2758

約数の個数: 32

約数和(自身を含む): 47791296

約数和(自身を除く): 25816278

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 107, 214, 321, 642, 1391, 2633, 2782, 4173, 5266, 7899, 8346, 15798, 34229, 68458, 102687, 205374, 281731, 563462, 845193, 1690386, 3662503, 7325006, 10987509, 21975018]

約数ペア:

[(1, 21975018), (2, 10987509), (3, 7325006), (6, 3662503), (13, 1690386), (26, 845193), (39, 563462), (78, 281731), (107, 205374), (214, 102687), (321, 68458), (642, 34229), (1391, 15798), (2633, 8346), (2782, 7899), (4173, 5266)]