21998412

素因数分解:

$2^2\times 3^3\times {\mathrm{347}}^1\times {\mathrm{587}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 57294720

約数和(自身を除く): 35296308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 347, 587, 694, 1041, 1174, 1388, 1761, 2082, 2348, 3123, 3522, 4164, 5283, 6246, 7044, 9369, 10566, 12492, 15849, 18738, 21132, 31698, 37476, 63396, 203689, 407378, 611067, 814756, 1222134, 1833201, 2444268, 3666402, 5499603, 7332804, 10999206, 21998412]

約数ペア:

[(1, 21998412), (2, 10999206), (3, 7332804), (4, 5499603), (6, 3666402), (9, 2444268), (12, 1833201), (18, 1222134), (27, 814756), (36, 611067), (54, 407378), (108, 203689), (347, 63396), (587, 37476), (694, 31698), (1041, 21132), (1174, 18738), (1388, 15849), (1761, 12492), (2082, 10566), (2348, 9369), (3123, 7044), (3522, 6246), (4164, 5283)]