21657506

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15114334

約数列:

[1, 2, 13, 26, 37, 47, 74, 94, 479, 481, 611, 958, 962, 1222, 1739, 3478, 6227, 12454, 17723, 22513, 22607, 35446, 45026, 45214, 230399, 292669, 460798, 585338, 832981, 1665962, 10828753, 21657506]

約数ペア:

[(1, 21657506), (2, 10828753), (13, 1665962), (26, 832981), (37, 585338), (47, 460798), (74, 292669), (94, 230399), (479, 45214), (481, 45026), (611, 35446), (958, 22607), (962, 22513), (1222, 17723), (1739, 12454), (3478, 6227)]