197824461

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 286934400

約数和(自身を除く): 89109939

約数列:

[1, 3, 17, 51, 53, 159, 163, 449, 489, 901, 1347, 2703, 2771, 7633, 8313, 8639, 22899, 23797, 25917, 71391, 73187, 146863, 219561, 404549, 440589, 1213647, 1244179, 3732537, 3878911, 11636733, 65941487, 197824461]

約数ペア:

[(1, 197824461), (3, 65941487), (17, 11636733), (51, 3878911), (53, 3732537), (159, 1244179), (163, 1213647), (449, 440589), (489, 404549), (901, 219561), (1347, 146863), (2703, 73187), (2771, 71391), (7633, 25917), (8313, 23797), (8639, 22899)]