51248421

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 90604800

約数和(自身を除く): 39356379

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 109, 119, 153, 327, 357, 439, 763, 981, 1071, 1317, 1853, 2289, 3073, 3951, 5559, 6867, 7463, 9219, 12971, 16677, 22389, 27657, 38913, 47851, 52241, 67167, 116739, 143553, 156723, 334957, 430659, 470169, 813467, 1004871, 2440401, 3014613, 5694269, 7321203, 17082807, 51248421]

約数ペア:

[(1, 51248421), (3, 17082807), (7, 7321203), (9, 5694269), (17, 3014613), (21, 2440401), (51, 1004871), (63, 813467), (109, 470169), (119, 430659), (153, 334957), (327, 156723), (357, 143553), (439, 116739), (763, 67167), (981, 52241), (1071, 47851), (1317, 38913), (1853, 27657), (2289, 22389), (3073, 16677), (3951, 12971), (5559, 9219), (6867, 7463)]