21568460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 48051360

約数和(自身を除く): 26482900

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 907, 1189, 1814, 2378, 3628, 4535, 4756, 5945, 9070, 11890, 18140, 23780, 26303, 37187, 52606, 74374, 105212, 131515, 148748, 185935, 263030, 371870, 526060, 743740, 1078423, 2156846, 4313692, 5392115, 10784230, 21568460]

約数ペア:

[(1, 21568460), (2, 10784230), (4, 5392115), (5, 4313692), (10, 2156846), (20, 1078423), (29, 743740), (41, 526060), (58, 371870), (82, 263030), (116, 185935), (145, 148748), (164, 131515), (205, 105212), (290, 74374), (410, 52606), (580, 37187), (820, 26303), (907, 23780), (1189, 18140), (1814, 11890), (2378, 9070), (3628, 5945), (4535, 4756)]