18203872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 38419920

約数和(自身を除く): 20216048

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 109, 136, 218, 272, 307, 436, 544, 614, 872, 1228, 1744, 1853, 2456, 3488, 3706, 4912, 5219, 7412, 9824, 10438, 14824, 20876, 29648, 33463, 41752, 59296, 66926, 83504, 133852, 167008, 267704, 535408, 568871, 1070816, 1137742, 2275484, 4550968, 9101936, 18203872]

約数ペア:

[(1, 18203872), (2, 9101936), (4, 4550968), (8, 2275484), (16, 1137742), (17, 1070816), (32, 568871), (34, 535408), (68, 267704), (109, 167008), (136, 133852), (218, 83504), (272, 66926), (307, 59296), (436, 41752), (544, 33463), (614, 29648), (872, 20876), (1228, 14824), (1744, 10438), (1853, 9824), (2456, 7412), (3488, 5219), (3706, 4912)]