21021336

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13903}}^1$

素因数の和:13925

約数の個数: 64

約数和(自身を含む): 66739200

約数和(自身を除く): 45717864

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 13903, 27806, 41709, 55612, 83418, 97321, 111224, 125127, 166836, 194642, 250254, 291963, 333672, 375381, 389284, 500508, 583926, 750762, 778568, 875889, 1001016, 1167852, 1501524, 1751778, 2335704, 2627667, 3003048, 3503556, 5255334, 7007112, 10510668, 21021336]

約数ペア:

[(1, 21021336), (2, 10510668), (3, 7007112), (4, 5255334), (6, 3503556), (7, 3003048), (8, 2627667), (9, 2335704), (12, 1751778), (14, 1501524), (18, 1167852), (21, 1001016), (24, 875889), (27, 778568), (28, 750762), (36, 583926), (42, 500508), (54, 389284), (56, 375381), (63, 333672), (72, 291963), (84, 250254), (108, 194642), (126, 166836), (168, 125127), (189, 111224), (216, 97321), (252, 83418), (378, 55612), (504, 41709), (756, 27806), (1512, 13903)]