21328590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30911}}^1$

素因数の和:30944

約数の個数: 32

約数和(自身を含む): 53415936

約数和(自身を除く): 32087346

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30911, 61822, 92733, 154555, 185466, 309110, 463665, 710953, 927330, 1421906, 2132859, 3554765, 4265718, 7109530, 10664295, 21328590]

約数ペア:

[(1, 21328590), (2, 10664295), (3, 7109530), (5, 4265718), (6, 3554765), (10, 2132859), (15, 1421906), (23, 927330), (30, 710953), (46, 463665), (69, 309110), (115, 185466), (138, 154555), (230, 92733), (345, 61822), (690, 30911)]