20886784

素因数分解:

$2^8\times {\mathrm{83}}^1\times {\mathrm{983}}^1$

素因数の和:1082

約数の個数: 36

約数和(自身を含む): 42237216

約数和(自身を除く): 21350432

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 256, 332, 664, 983, 1328, 1966, 2656, 3932, 5312, 7864, 10624, 15728, 21248, 31456, 62912, 81589, 125824, 163178, 251648, 326356, 652712, 1305424, 2610848, 5221696, 10443392, 20886784]

約数ペア:

[(1, 20886784), (2, 10443392), (4, 5221696), (8, 2610848), (16, 1305424), (32, 652712), (64, 326356), (83, 251648), (128, 163178), (166, 125824), (256, 81589), (332, 62912), (664, 31456), (983, 21248), (1328, 15728), (1966, 10624), (2656, 7864), (3932, 5312)]