428438997

素因数分解:

$3^3\times 7^2\times {\mathrm{109}}^1\times {\mathrm{2971}}^1$

素因数の和:3103

約数の個数: 48

約数和(自身を含む): 745377600

約数和(自身を除く): 316938603

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 109, 147, 189, 327, 441, 763, 981, 1323, 2289, 2943, 2971, 5341, 6867, 8913, 16023, 20601, 20797, 26739, 48069, 62391, 80217, 144207, 145579, 187173, 323839, 436737, 561519, 971517, 1310211, 2266873, 2914551, 3930633, 6800619, 8743653, 15868111, 20401857, 47604333, 61205571, 142812999, 428438997]

約数ペア:

[(1, 428438997), (3, 142812999), (7, 61205571), (9, 47604333), (21, 20401857), (27, 15868111), (49, 8743653), (63, 6800619), (109, 3930633), (147, 2914551), (189, 2266873), (327, 1310211), (441, 971517), (763, 561519), (981, 436737), (1323, 323839), (2289, 187173), (2943, 145579), (2971, 144207), (5341, 80217), (6867, 62391), (8913, 48069), (16023, 26739), (20601, 20797)]