20953984

素因数分解:

$2^7\times {\mathrm{127}}^1\times {\mathrm{1289}}^1$

素因数の和:1430

約数の個数: 32

約数和(自身を含む): 42105600

約数和(自身を除く): 21151616

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 508, 1016, 1289, 2032, 2578, 4064, 5156, 8128, 10312, 16256, 20624, 41248, 82496, 163703, 164992, 327406, 654812, 1309624, 2619248, 5238496, 10476992, 20953984]

約数ペア:

[(1, 20953984), (2, 10476992), (4, 5238496), (8, 2619248), (16, 1309624), (32, 654812), (64, 327406), (127, 164992), (128, 163703), (254, 82496), (508, 41248), (1016, 20624), (1289, 16256), (2032, 10312), (2578, 8128), (4064, 5156)]