19310018

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 18610942

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 637, 659, 1127, 1274, 1318, 2093, 2254, 4186, 4613, 8567, 9226, 14651, 15157, 17134, 29302, 30314, 32291, 59969, 64582, 106099, 119938, 197041, 212198, 394082, 419783, 742693, 839566, 1379287, 1485386, 2758574, 9655009, 19310018]

約数ペア:

[(1, 19310018), (2, 9655009), (7, 2758574), (13, 1485386), (14, 1379287), (23, 839566), (26, 742693), (46, 419783), (49, 394082), (91, 212198), (98, 197041), (161, 119938), (182, 106099), (299, 64582), (322, 59969), (598, 32291), (637, 30314), (659, 29302), (1127, 17134), (1274, 15157), (1318, 14651), (2093, 9226), (2254, 8567), (4186, 4613)]