21787497315

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{1153}}^1$

素因数の和:1378

約数の個数: 128

約数和(自身を含む): 41876352000

約数和(自身を除く): 20088854685

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 53, 57, 95, 135, 139, 159, 171, 265, 285, 417, 477, 513, 695, 795, 855, 1007, 1153, 1251, 1431, 2085, 2385, 2565, 2641, 3021, 3459, 3753, 5035, 5765, 6255, 7155, 7367, 7923, 9063, 10377, 13205, 15105, 17295, 18765, 21907, 22101, 23769, 27189, 31131, 36835, 39615, 45315, 51885, 61109, 65721, 66303, 71307, 109535, 110505, 118845, 135945, 139973, 155655, 160267, 183327, 197163, 198909, 305545, 328605, 331515, 356535, 419919, 480801, 549981, 591489, 699865, 801335, 916635, 985815, 994545, 1161071, 1259757, 1442403, 1649943, 2099595, 2404005, 2749905, 2957445, 3045073, 3483213, 3779271, 4327209, 5805355, 6298785, 7212015, 8249715, 8494151, 9135219, 10449639, 15225365, 17416065, 18896355, 21636045, 25482453, 27405657, 31348917, 42470755, 45676095, 52248195, 76447359, 82216971, 127412265, 137028285, 156744585, 161388869, 229342077, 382236795, 411084855, 484166607, 806944345, 1146710385, 1452499821, 2420833035, 4357499463, 7262499105, 21787497315]

約数ペア:

[(1, 21787497315), (3, 7262499105), (5, 4357499463), (9, 2420833035), (15, 1452499821), (19, 1146710385), (27, 806944345), (45, 484166607), (53, 411084855), (57, 382236795), (95, 229342077), (135, 161388869), (139, 156744585), (159, 137028285), (171, 127412265), (265, 82216971), (285, 76447359), (417, 52248195), (477, 45676095), (513, 42470755), (695, 31348917), (795, 27405657), (855, 25482453), (1007, 21636045), (1153, 18896355), (1251, 17416065), (1431, 15225365), (2085, 10449639), (2385, 9135219), (2565, 8494151), (2641, 8249715), (3021, 7212015), (3459, 6298785), (3753, 5805355), (5035, 4327209), (5765, 3779271), (6255, 3483213), (7155, 3045073), (7367, 2957445), (7923, 2749905), (9063, 2404005), (10377, 2099595), (13205, 1649943), (15105, 1442403), (17295, 1259757), (18765, 1161071), (21907, 994545), (22101, 985815), (23769, 916635), (27189, 801335), (31131, 699865), (36835, 591489), (39615, 549981), (45315, 480801), (51885, 419919), (61109, 356535), (65721, 331515), (66303, 328605), (71307, 305545), (109535, 198909), (110505, 197163), (118845, 183327), (135945, 160267), (139973, 155655)]