21673590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 54991872

約数和(自身を除く): 33318282

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 101, 115, 138, 202, 230, 303, 311, 345, 505, 606, 622, 690, 933, 1010, 1515, 1555, 1866, 2323, 3030, 3110, 4646, 4665, 6969, 7153, 9330, 11615, 13938, 14306, 21459, 23230, 31411, 34845, 35765, 42918, 62822, 69690, 71530, 94233, 107295, 157055, 188466, 214590, 314110, 471165, 722453, 942330, 1444906, 2167359, 3612265, 4334718, 7224530, 10836795, 21673590]

約数ペア:

[(1, 21673590), (2, 10836795), (3, 7224530), (5, 4334718), (6, 3612265), (10, 2167359), (15, 1444906), (23, 942330), (30, 722453), (46, 471165), (69, 314110), (101, 214590), (115, 188466), (138, 157055), (202, 107295), (230, 94233), (303, 71530), (311, 69690), (345, 62822), (505, 42918), (606, 35765), (622, 34845), (690, 31411), (933, 23230), (1010, 21459), (1515, 14306), (1555, 13938), (1866, 11615), (2323, 9330), (3030, 7153), (3110, 6969), (4646, 4665)]