21950128

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:190

約数の個数: 60

約数和(自身を含む): 46595232

約数和(自身を除く): 24645104

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 101, 136, 188, 202, 272, 289, 376, 404, 578, 752, 799, 808, 1156, 1598, 1616, 1717, 2312, 3196, 3434, 4624, 4747, 6392, 6868, 9494, 12784, 13583, 13736, 18988, 27166, 27472, 29189, 37976, 54332, 58378, 75952, 80699, 108664, 116756, 161398, 217328, 233512, 322796, 467024, 645592, 1291184, 1371883, 2743766, 5487532, 10975064, 21950128]

約数ペア:

[(1, 21950128), (2, 10975064), (4, 5487532), (8, 2743766), (16, 1371883), (17, 1291184), (34, 645592), (47, 467024), (68, 322796), (94, 233512), (101, 217328), (136, 161398), (188, 116756), (202, 108664), (272, 80699), (289, 75952), (376, 58378), (404, 54332), (578, 37976), (752, 29189), (799, 27472), (808, 27166), (1156, 18988), (1598, 13736), (1616, 13583), (1717, 12784), (2312, 9494), (3196, 6868), (3434, 6392), (4624, 4747)]