21551212917

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1\times {\mathrm{641}}^1$

素因数の和:1065

約数の個数: 96

約数和(自身を含む): 36118817280

約数和(自身を除く): 14567604363

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 243, 261, 351, 367, 377, 641, 783, 1053, 1101, 1131, 1923, 2349, 3159, 3303, 3393, 4771, 5769, 7047, 8333, 9909, 10179, 10643, 14313, 17307, 18589, 24999, 29727, 30537, 31929, 42939, 51921, 55767, 74997, 89181, 91611, 95787, 128817, 138359, 155763, 167301, 224991, 235247, 241657, 287361, 386451, 415077, 501903, 674973, 705741, 724971, 862083, 1159353, 1245231, 1505709, 2024919, 2117223, 2174913, 2586249, 3058211, 3735693, 4517127, 6351669, 6524739, 6822163, 9174633, 11207079, 19055007, 19574217, 20466489, 27523899, 33621237, 57165021, 58722651, 61399467, 82571697, 88688119, 184198401, 247715091, 266064357, 552595203, 743145273, 798193071, 1657785609, 2394579213, 7183737639, 21551212917]

約数ペア:

[(1, 21551212917), (3, 7183737639), (9, 2394579213), (13, 1657785609), (27, 798193071), (29, 743145273), (39, 552595203), (81, 266064357), (87, 247715091), (117, 184198401), (243, 88688119), (261, 82571697), (351, 61399467), (367, 58722651), (377, 57165021), (641, 33621237), (783, 27523899), (1053, 20466489), (1101, 19574217), (1131, 19055007), (1923, 11207079), (2349, 9174633), (3159, 6822163), (3303, 6524739), (3393, 6351669), (4771, 4517127), (5769, 3735693), (7047, 3058211), (8333, 2586249), (9909, 2174913), (10179, 2117223), (10643, 2024919), (14313, 1505709), (17307, 1245231), (18589, 1159353), (24999, 862083), (29727, 724971), (30537, 705741), (31929, 674973), (42939, 501903), (51921, 415077), (55767, 386451), (74997, 287361), (89181, 241657), (91611, 235247), (95787, 224991), (128817, 167301), (138359, 155763)]