18640976

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3607}}^1$

素因数の和:3651

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 21624304

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3607, 5168, 7214, 14428, 28856, 57712, 61319, 68533, 122638, 137066, 245276, 274132, 490552, 548264, 981104, 1096528, 1165061, 2330122, 4660244, 9320488, 18640976]

約数ペア:

[(1, 18640976), (2, 9320488), (4, 4660244), (8, 2330122), (16, 1165061), (17, 1096528), (19, 981104), (34, 548264), (38, 490552), (68, 274132), (76, 245276), (136, 137066), (152, 122638), (272, 68533), (304, 61319), (323, 57712), (646, 28856), (1292, 14428), (2584, 7214), (3607, 5168)]