20888406

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2153}}^1$

素因数の和:2186

約数の個数: 72

約数和(自身を含む): 57460104

約数和(自身を除く): 36571698

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 77, 98, 99, 126, 147, 154, 198, 231, 294, 441, 462, 539, 693, 882, 1078, 1386, 1617, 2153, 3234, 4306, 4851, 6459, 9702, 12918, 15071, 19377, 23683, 30142, 38754, 45213, 47366, 71049, 90426, 105497, 135639, 142098, 165781, 210994, 213147, 271278, 316491, 331562, 426294, 497343, 632982, 949473, 994686, 1160467, 1492029, 1898946, 2320934, 2984058, 3481401, 6962802, 10444203, 20888406]

約数ペア:

[(1, 20888406), (2, 10444203), (3, 6962802), (6, 3481401), (7, 2984058), (9, 2320934), (11, 1898946), (14, 1492029), (18, 1160467), (21, 994686), (22, 949473), (33, 632982), (42, 497343), (49, 426294), (63, 331562), (66, 316491), (77, 271278), (98, 213147), (99, 210994), (126, 165781), (147, 142098), (154, 135639), (198, 105497), (231, 90426), (294, 71049), (441, 47366), (462, 45213), (539, 38754), (693, 30142), (882, 23683), (1078, 19377), (1386, 15071), (1617, 12918), (2153, 9702), (3234, 6459), (4306, 4851)]