21271656

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2389}}^1$

素因数の和:2458

約数の個数: 64

約数和(自身を含む): 61948800

約数和(自身を除く): 40677144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 53, 56, 84, 106, 159, 168, 212, 318, 371, 424, 636, 742, 1113, 1272, 1484, 2226, 2389, 2968, 4452, 4778, 7167, 8904, 9556, 14334, 16723, 19112, 28668, 33446, 50169, 57336, 66892, 100338, 126617, 133784, 200676, 253234, 379851, 401352, 506468, 759702, 886319, 1012936, 1519404, 1772638, 2658957, 3038808, 3545276, 5317914, 7090552, 10635828, 21271656]

約数ペア:

[(1, 21271656), (2, 10635828), (3, 7090552), (4, 5317914), (6, 3545276), (7, 3038808), (8, 2658957), (12, 1772638), (14, 1519404), (21, 1012936), (24, 886319), (28, 759702), (42, 506468), (53, 401352), (56, 379851), (84, 253234), (106, 200676), (159, 133784), (168, 126617), (212, 100338), (318, 66892), (371, 57336), (424, 50169), (636, 33446), (742, 28668), (1113, 19112), (1272, 16723), (1484, 14334), (2226, 9556), (2389, 8904), (2968, 7167), (4452, 4778)]