16645904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{349}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 35414400

約数和(自身を除く): 18768496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 271, 349, 542, 698, 1084, 1396, 2168, 2792, 2981, 3839, 4336, 5584, 5962, 7678, 11924, 15356, 23848, 30712, 47696, 61424, 94579, 189158, 378316, 756632, 1040369, 1513264, 2080738, 4161476, 8322952, 16645904]

約数ペア:

[(1, 16645904), (2, 8322952), (4, 4161476), (8, 2080738), (11, 1513264), (16, 1040369), (22, 756632), (44, 378316), (88, 189158), (176, 94579), (271, 61424), (349, 47696), (542, 30712), (698, 23848), (1084, 15356), (1396, 11924), (2168, 7678), (2792, 5962), (2981, 5584), (3839, 4336)]