18921000944

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{409}}^1\times {\mathrm{7283}}^1$

素因数の和:8097

約数の個数: 40

約数和(自身を含む): 36846696720

約数和(自身を除く): 17925695776

約数列:

[1, 2, 4, 8, 16, 397, 409, 794, 818, 1588, 1636, 3176, 3272, 6352, 6544, 7283, 14566, 29132, 58264, 116528, 162373, 324746, 649492, 1298984, 2597968, 2891351, 2978747, 5782702, 5957494, 11565404, 11914988, 23130808, 23829976, 46261616, 47659952, 1182562559, 2365125118, 4730250236, 9460500472, 18921000944]

約数ペア:

[(1, 18921000944), (2, 9460500472), (4, 4730250236), (8, 2365125118), (16, 1182562559), (397, 47659952), (409, 46261616), (794, 23829976), (818, 23130808), (1588, 11914988), (1636, 11565404), (3176, 5957494), (3272, 5782702), (6352, 2978747), (6544, 2891351), (7283, 2597968), (14566, 1298984), (29132, 649492), (58264, 324746), (116528, 162373)]