18887705067

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{373}}^1\times {\mathrm{983}}^1$

素因数の和:1600

約数の個数: 64

約数和(自身を含む): 31655264256

約数和(自身を除く): 12767559189

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 373, 669, 983, 1119, 1561, 2453, 2611, 2949, 4103, 4683, 6881, 7359, 7833, 10813, 12309, 17171, 20643, 28721, 32439, 51513, 75691, 83179, 86163, 219209, 227073, 249537, 366659, 582253, 657627, 914969, 1099977, 1534463, 1746759, 2411299, 2566613, 2744907, 4033249, 4603389, 6404783, 7233897, 7699839, 12099747, 16879093, 19214349, 28232743, 50637279, 81764957, 84698229, 245294871, 572354699, 899414527, 1717064097, 2698243581, 6295901689, 18887705067]

約数ペア:

[(1, 18887705067), (3, 6295901689), (7, 2698243581), (11, 1717064097), (21, 899414527), (33, 572354699), (77, 245294871), (223, 84698229), (231, 81764957), (373, 50637279), (669, 28232743), (983, 19214349), (1119, 16879093), (1561, 12099747), (2453, 7699839), (2611, 7233897), (2949, 6404783), (4103, 4603389), (4683, 4033249), (6881, 2744907), (7359, 2566613), (7833, 2411299), (10813, 1746759), (12309, 1534463), (17171, 1099977), (20643, 914969), (28721, 657627), (32439, 582253), (51513, 366659), (75691, 249537), (83179, 227073), (86163, 219209)]