253442007

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 499968000

約数和(自身を除く): 246525993

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 61, 63, 89, 91, 117, 133, 171, 183, 189, 247, 267, 273, 351, 399, 427, 513, 549, 623, 741, 793, 801, 819, 1157, 1159, 1197, 1281, 1647, 1691, 1729, 1869, 2223, 2379, 2403, 2457, 3471, 3477, 3591, 3843, 5073, 5187, 5429, 5551, 5607, 6669, 7137, 8099, 8113, 10413, 10431, 11529, 11837, 15067, 15219, 15561, 16287, 16653, 16821, 21411, 21983, 24297, 24339, 31239, 31293, 35511, 38003, 45201, 45657, 46683, 48861, 49959, 65949, 70577, 72891, 73017, 103151, 105469, 106533, 114009, 135603, 146583, 149877, 153881, 197847, 211731, 218673, 219051, 309453, 316407, 319599, 342027, 406809, 461643, 494039, 593541, 635193, 722057, 928359, 949221, 1026081, 1340963, 1384929, 1482117, 1905579, 2166171, 2785077, 2847663, 4022889, 4154787, 4446351, 6498513, 9386741, 12068667, 13339053, 19495539, 28160223, 36206001, 84480669, 253442007]

約数ペア:

[(1, 253442007), (3, 84480669), (7, 36206001), (9, 28160223), (13, 19495539), (19, 13339053), (21, 12068667), (27, 9386741), (39, 6498513), (57, 4446351), (61, 4154787), (63, 4022889), (89, 2847663), (91, 2785077), (117, 2166171), (133, 1905579), (171, 1482117), (183, 1384929), (189, 1340963), (247, 1026081), (267, 949221), (273, 928359), (351, 722057), (399, 635193), (427, 593541), (513, 494039), (549, 461643), (623, 406809), (741, 342027), (793, 319599), (801, 316407), (819, 309453), (1157, 219051), (1159, 218673), (1197, 211731), (1281, 197847), (1647, 153881), (1691, 149877), (1729, 146583), (1869, 135603), (2223, 114009), (2379, 106533), (2403, 105469), (2457, 103151), (3471, 73017), (3477, 72891), (3591, 70577), (3843, 65949), (5073, 49959), (5187, 48861), (5429, 46683), (5551, 45657), (5607, 45201), (6669, 38003), (7137, 35511), (8099, 31293), (8113, 31239), (10413, 24339), (10431, 24297), (11529, 21983), (11837, 21411), (15067, 16821), (15219, 16653), (15561, 16287)]