19881984

素因数分解:

$2^{13}\times 3^1\times {\mathrm{809}}^1$

素因数の和:838

約数の個数: 56

約数和(自身を含む): 53080920

約数和(自身を除く): 33198936

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 809, 1024, 1536, 1618, 2048, 2427, 3072, 3236, 4096, 4854, 6144, 6472, 8192, 9708, 12288, 12944, 19416, 24576, 25888, 38832, 51776, 77664, 103552, 155328, 207104, 310656, 414208, 621312, 828416, 1242624, 1656832, 2485248, 3313664, 4970496, 6627328, 9940992, 19881984]

約数ペア:

[(1, 19881984), (2, 9940992), (3, 6627328), (4, 4970496), (6, 3313664), (8, 2485248), (12, 1656832), (16, 1242624), (24, 828416), (32, 621312), (48, 414208), (64, 310656), (96, 207104), (128, 155328), (192, 103552), (256, 77664), (384, 51776), (512, 38832), (768, 25888), (809, 24576), (1024, 19416), (1536, 12944), (1618, 12288), (2048, 9708), (2427, 8192), (3072, 6472), (3236, 6144), (4096, 4854)]