217777976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{2179}}^1$

素因数の和:2260

約数の個数: 48

約数和(自身を含む): 454595400

約数和(自身を除く): 236817424

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 961, 1612, 1922, 2179, 3224, 3844, 4358, 7688, 8716, 12493, 17432, 24986, 28327, 49972, 56654, 67549, 99944, 113308, 135098, 226616, 270196, 540392, 878137, 1756274, 2094019, 3512548, 4188038, 7025096, 8376076, 16752152, 27222247, 54444494, 108888988, 217777976]

約数ペア:

[(1, 217777976), (2, 108888988), (4, 54444494), (8, 27222247), (13, 16752152), (26, 8376076), (31, 7025096), (52, 4188038), (62, 3512548), (104, 2094019), (124, 1756274), (248, 878137), (403, 540392), (806, 270196), (961, 226616), (1612, 135098), (1922, 113308), (2179, 99944), (3224, 67549), (3844, 56654), (4358, 49972), (7688, 28327), (8716, 24986), (12493, 17432)]