21577984

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2766

約数の個数: 36

約数和(自身を含む): 44477440

約数和(自身を除く): 22899456

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2719, 3968, 5438, 7936, 10876, 21752, 43504, 84289, 87008, 168578, 174016, 337156, 348032, 674312, 696064, 1348624, 2697248, 5394496, 10788992, 21577984]

約数ペア:

[(1, 21577984), (2, 10788992), (4, 5394496), (8, 2697248), (16, 1348624), (31, 696064), (32, 674312), (62, 348032), (64, 337156), (124, 174016), (128, 168578), (248, 87008), (256, 84289), (496, 43504), (992, 21752), (1984, 10876), (2719, 7936), (3968, 5438)]