21144123

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2347}}^1$

素因数の和:2384

約数の個数: 48

約数和(自身を含む): 41024256

約数和(自身を除く): 19880133

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2347, 3003, 7041, 9009, 16429, 21123, 25817, 30511, 49287, 77451, 91533, 147861, 180719, 213577, 232353, 274599, 335621, 542157, 640731, 1006863, 1626471, 1922193, 2349347, 3020589, 7048041, 21144123]

約数ペア:

[(1, 21144123), (3, 7048041), (7, 3020589), (9, 2349347), (11, 1922193), (13, 1626471), (21, 1006863), (33, 640731), (39, 542157), (63, 335621), (77, 274599), (91, 232353), (99, 213577), (117, 180719), (143, 147861), (231, 91533), (273, 77451), (429, 49287), (693, 30511), (819, 25817), (1001, 21123), (1287, 16429), (2347, 9009), (3003, 7041)]