21280072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3061}}^1$

素因数の和:3157

約数の個数: 32

約数和(自身を含む): 44092800

約数和(自身を除く): 22812728

約数列:

[1, 2, 4, 8, 11, 22, 44, 79, 88, 158, 316, 632, 869, 1738, 3061, 3476, 6122, 6952, 12244, 24488, 33671, 67342, 134684, 241819, 269368, 483638, 967276, 1934552, 2660009, 5320018, 10640036, 21280072]

約数ペア:

[(1, 21280072), (2, 10640036), (4, 5320018), (8, 2660009), (11, 1934552), (22, 967276), (44, 483638), (79, 269368), (88, 241819), (158, 134684), (316, 67342), (632, 33671), (869, 24488), (1738, 12244), (3061, 6952), (3476, 6122)]