21000638944

素因数分解:

$2^5\times {\mathrm{12503}}^1\times {\mathrm{52489}}^1$

素因数の和:65002

約数の個数: 24

約数和(自身を含む): 41349102480

約数和(自身を除く): 20348463536

約数列:

[1, 2, 4, 8, 16, 32, 12503, 25006, 50012, 52489, 100024, 104978, 200048, 209956, 400096, 419912, 839824, 1679648, 656269967, 1312539934, 2625079868, 5250159736, 10500319472, 21000638944]

約数ペア:

[(1, 21000638944), (2, 10500319472), (4, 5250159736), (8, 2625079868), (16, 1312539934), (32, 656269967), (12503, 1679648), (25006, 839824), (50012, 419912), (52489, 400096), (100024, 209956), (104978, 200048)]