19081712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:681

約数の個数: 40

約数和(自身を含む): 40101600

約数和(自身を除く): 21019888

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 199, 208, 398, 461, 796, 922, 1592, 1844, 2587, 3184, 3688, 5174, 5993, 7376, 10348, 11986, 20696, 23972, 41392, 47944, 91739, 95888, 183478, 366956, 733912, 1192607, 1467824, 2385214, 4770428, 9540856, 19081712]

約数ペア:

[(1, 19081712), (2, 9540856), (4, 4770428), (8, 2385214), (13, 1467824), (16, 1192607), (26, 733912), (52, 366956), (104, 183478), (199, 95888), (208, 91739), (398, 47944), (461, 41392), (796, 23972), (922, 20696), (1592, 11986), (1844, 10348), (2587, 7376), (3184, 5993), (3688, 5174)]