21000466372

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{347}}^1\times {\mathrm{256441}}^1$

素因数の和:256851

約数の個数: 24

約数和(自身を含む): 37481562720

約数和(自身を除く): 16481096348

約数列:

[1, 2, 4, 59, 118, 236, 347, 694, 1388, 20473, 40946, 81892, 256441, 512882, 1025764, 15130019, 30260038, 60520076, 88985027, 177970054, 355940108, 5250116593, 10500233186, 21000466372]

約数ペア:

[(1, 21000466372), (2, 10500233186), (4, 5250116593), (59, 355940108), (118, 177970054), (236, 88985027), (347, 60520076), (694, 30260038), (1388, 15130019), (20473, 1025764), (40946, 512882), (81892, 256441)]