71331813

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^2$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 128741760

約数和(自身を除く): 57409947

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 149, 153, 189, 357, 447, 459, 1043, 1071, 1341, 2533, 3129, 3213, 4023, 7599, 9387, 17731, 22201, 22797, 28161, 53193, 66603, 68391, 155407, 159579, 199809, 377417, 466221, 478737, 599427, 1132251, 1398663, 2641919, 3396753, 4195989, 7925757, 10190259, 23777271, 71331813]

約数ペア:

[(1, 71331813), (3, 23777271), (7, 10190259), (9, 7925757), (17, 4195989), (21, 3396753), (27, 2641919), (51, 1398663), (63, 1132251), (119, 599427), (149, 478737), (153, 466221), (189, 377417), (357, 199809), (447, 159579), (459, 155407), (1043, 68391), (1071, 66603), (1341, 53193), (2533, 28161), (3129, 22797), (3213, 22201), (4023, 17731), (7599, 9387)]