21022456

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28329224

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 431, 469, 536, 728, 862, 871, 938, 1724, 1742, 1876, 3017, 3448, 3484, 3752, 5603, 6034, 6097, 6968, 11206, 12068, 12194, 22412, 24136, 24388, 28877, 39221, 44824, 48776, 57754, 78442, 115508, 156884, 202139, 231016, 313768, 375401, 404278, 750802, 808556, 1501604, 1617112, 2627807, 3003208, 5255614, 10511228, 21022456]

約数ペア:

[(1, 21022456), (2, 10511228), (4, 5255614), (7, 3003208), (8, 2627807), (13, 1617112), (14, 1501604), (26, 808556), (28, 750802), (52, 404278), (56, 375401), (67, 313768), (91, 231016), (104, 202139), (134, 156884), (182, 115508), (268, 78442), (364, 57754), (431, 48776), (469, 44824), (536, 39221), (728, 28877), (862, 24388), (871, 24136), (938, 22412), (1724, 12194), (1742, 12068), (1876, 11206), (3017, 6968), (3448, 6097), (3484, 6034), (3752, 5603)]