18354608

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:549

約数の個数: 40

約数和(自身を含む): 37758000

約数和(自身を除く): 19403392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 173, 304, 346, 349, 692, 698, 1384, 1396, 2768, 2792, 3287, 5584, 6574, 6631, 13148, 13262, 26296, 26524, 52592, 53048, 60377, 106096, 120754, 241508, 483016, 966032, 1147163, 2294326, 4588652, 9177304, 18354608]

約数ペア:

[(1, 18354608), (2, 9177304), (4, 4588652), (8, 2294326), (16, 1147163), (19, 966032), (38, 483016), (76, 241508), (152, 120754), (173, 106096), (304, 60377), (346, 53048), (349, 52592), (692, 26524), (698, 26296), (1384, 13262), (1396, 13148), (2768, 6631), (2792, 6574), (3287, 5584)]