221435728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{23497}}^1$

素因数の和:23555

約数の個数: 40

約数和(自身を含む): 466200320

約数和(自身を除く): 244764592

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 23497, 46994, 93988, 187976, 375952, 446443, 728407, 892886, 1456814, 1785772, 2913628, 3571544, 5827256, 7143088, 11654512, 13839733, 27679466, 55358932, 110717864, 221435728]

約数ペア:

[(1, 221435728), (2, 110717864), (4, 55358932), (8, 27679466), (16, 13839733), (19, 11654512), (31, 7143088), (38, 5827256), (62, 3571544), (76, 2913628), (124, 1785772), (152, 1456814), (248, 892886), (304, 728407), (496, 446443), (589, 375952), (1178, 187976), (2356, 93988), (4712, 46994), (9424, 23497)]