18972416

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{2003}}^1$

素因数の和:2056

約数の個数: 36

約数和(自身を含む): 38913672

約数和(自身を除く): 19941256

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 256, 296, 592, 1184, 2003, 2368, 4006, 4736, 8012, 9472, 16024, 32048, 64096, 74111, 128192, 148222, 256384, 296444, 512768, 592888, 1185776, 2371552, 4743104, 9486208, 18972416]

約数ペア:

[(1, 18972416), (2, 9486208), (4, 4743104), (8, 2371552), (16, 1185776), (32, 592888), (37, 512768), (64, 296444), (74, 256384), (128, 148222), (148, 128192), (256, 74111), (296, 64096), (592, 32048), (1184, 16024), (2003, 9472), (2368, 8012), (4006, 4736)]