21614859721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1\times {\mathrm{6967}}^1$

素因数の和:7421

約数の個数: 32

約数和(自身を含む): 26946203648

約数和(自身を除く): 5331343927

約数列:

[1, 7, 13, 91, 103, 331, 721, 1339, 2317, 4303, 6967, 9373, 30121, 34093, 48769, 90571, 238651, 443209, 633997, 717601, 2306077, 3102463, 5023207, 9328813, 16142539, 29979001, 65301691, 209853007, 237525931, 1662681517, 3087837103, 21614859721]

約数ペア:

[(1, 21614859721), (7, 3087837103), (13, 1662681517), (91, 237525931), (103, 209853007), (331, 65301691), (721, 29979001), (1339, 16142539), (2317, 9328813), (4303, 5023207), (6967, 3102463), (9373, 2306077), (30121, 717601), (34093, 633997), (48769, 443209), (90571, 238651)]