21499884

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28439}}^1$

素因数の和:28459

約数の個数: 48

約数和(自身を含む): 63705600

約数和(自身を除く): 42205716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28439, 56878, 85317, 113756, 170634, 199073, 255951, 341268, 398146, 511902, 597219, 767853, 796292, 1023804, 1194438, 1535706, 1791657, 2388876, 3071412, 3583314, 5374971, 7166628, 10749942, 21499884]

約数ペア:

[(1, 21499884), (2, 10749942), (3, 7166628), (4, 5374971), (6, 3583314), (7, 3071412), (9, 2388876), (12, 1791657), (14, 1535706), (18, 1194438), (21, 1023804), (27, 796292), (28, 767853), (36, 597219), (42, 511902), (54, 398146), (63, 341268), (84, 255951), (108, 199073), (126, 170634), (189, 113756), (252, 85317), (378, 56878), (756, 28439)]