217745163

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 355829760

約数和(自身を除く): 138084597

約数列:

[1, 3, 9, 17, 23, 43, 51, 69, 129, 153, 207, 387, 391, 731, 989, 1173, 1439, 2193, 2967, 3519, 4317, 6579, 8901, 12951, 16813, 24463, 33097, 50439, 61877, 73389, 99291, 151317, 185631, 220167, 297873, 556893, 562649, 1051909, 1423171, 1687947, 3155727, 4269513, 5063841, 9467181, 12808539, 24193907, 72581721, 217745163]

約数ペア:

[(1, 217745163), (3, 72581721), (9, 24193907), (17, 12808539), (23, 9467181), (43, 5063841), (51, 4269513), (69, 3155727), (129, 1687947), (153, 1423171), (207, 1051909), (387, 562649), (391, 556893), (731, 297873), (989, 220167), (1173, 185631), (1439, 151317), (2193, 99291), (2967, 73389), (3519, 61877), (4317, 50439), (6579, 33097), (8901, 24463), (12951, 16813)]