21396258

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1051}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 53020800

約数和(自身を除く): 31624542

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 87, 117, 174, 234, 261, 351, 377, 522, 702, 754, 783, 1051, 1131, 1566, 2102, 2262, 3153, 3393, 6306, 6786, 9459, 10179, 13663, 18918, 20358, 27326, 28377, 30479, 40989, 56754, 60958, 81978, 91437, 122967, 182874, 245934, 274311, 368901, 396227, 548622, 737802, 792454, 822933, 1188681, 1645866, 2377362, 3566043, 7132086, 10698129, 21396258]

約数ペア:

[(1, 21396258), (2, 10698129), (3, 7132086), (6, 3566043), (9, 2377362), (13, 1645866), (18, 1188681), (26, 822933), (27, 792454), (29, 737802), (39, 548622), (54, 396227), (58, 368901), (78, 274311), (87, 245934), (117, 182874), (174, 122967), (234, 91437), (261, 81978), (351, 60958), (377, 56754), (522, 40989), (702, 30479), (754, 28377), (783, 27326), (1051, 20358), (1131, 18918), (1566, 13663), (2102, 10179), (2262, 9459), (3153, 6786), (3393, 6306)]