21941264

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 44848320

約数和(自身を除く): 22907056

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 109, 184, 218, 368, 436, 547, 872, 1094, 1744, 2188, 2507, 4376, 5014, 8752, 10028, 12581, 20056, 25162, 40112, 50324, 59623, 100648, 119246, 201296, 238492, 476984, 953968, 1371329, 2742658, 5485316, 10970632, 21941264]

約数ペア:

[(1, 21941264), (2, 10970632), (4, 5485316), (8, 2742658), (16, 1371329), (23, 953968), (46, 476984), (92, 238492), (109, 201296), (184, 119246), (218, 100648), (368, 59623), (436, 50324), (547, 40112), (872, 25162), (1094, 20056), (1744, 12581), (2188, 10028), (2507, 8752), (4376, 5014)]