21364245

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9689}}^1$

素因数の和:9714

約数の個数: 36

約数和(自身を含む): 43081740

約数和(自身を除く): 21717495

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9689, 29067, 48445, 67823, 87201, 145335, 203469, 339115, 436005, 474761, 610407, 1017345, 1424283, 2373805, 3052035, 4272849, 7121415, 21364245]

約数ペア:

[(1, 21364245), (3, 7121415), (5, 4272849), (7, 3052035), (9, 2373805), (15, 1424283), (21, 1017345), (35, 610407), (45, 474761), (49, 436005), (63, 339115), (105, 203469), (147, 145335), (245, 87201), (315, 67823), (441, 48445), (735, 29067), (2205, 9689)]