20407254

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29359146

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 107, 114, 133, 214, 239, 266, 321, 399, 478, 642, 717, 749, 798, 1434, 1498, 1673, 2033, 2247, 3346, 4066, 4494, 4541, 5019, 6099, 9082, 10038, 12198, 13623, 14231, 25573, 27246, 28462, 31787, 42693, 51146, 63574, 76719, 85386, 95361, 153438, 179011, 190722, 358022, 485887, 537033, 971774, 1074066, 1457661, 2915322, 3401209, 6802418, 10203627, 20407254]

約数ペア:

[(1, 20407254), (2, 10203627), (3, 6802418), (6, 3401209), (7, 2915322), (14, 1457661), (19, 1074066), (21, 971774), (38, 537033), (42, 485887), (57, 358022), (107, 190722), (114, 179011), (133, 153438), (214, 95361), (239, 85386), (266, 76719), (321, 63574), (399, 51146), (478, 42693), (642, 31787), (717, 28462), (749, 27246), (798, 25573), (1434, 14231), (1498, 13623), (1673, 12198), (2033, 10038), (2247, 9082), (3346, 6099), (4066, 5019), (4494, 4541)]