21637420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22079}}^1$

素因数の和:22102

約数の個数: 36

約数和(自身を含む): 52859520

約数和(自身を除く): 31222100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22079, 44158, 88316, 110395, 154553, 220790, 309106, 441580, 618212, 772765, 1081871, 1545530, 2163742, 3091060, 4327484, 5409355, 10818710, 21637420]

約数ペア:

[(1, 21637420), (2, 10818710), (4, 5409355), (5, 4327484), (7, 3091060), (10, 2163742), (14, 1545530), (20, 1081871), (28, 772765), (35, 618212), (49, 441580), (70, 309106), (98, 220790), (140, 154553), (196, 110395), (245, 88316), (490, 44158), (980, 22079)]