21999894

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 52948992

約数和(自身を除く): 30949098

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 61, 62, 93, 122, 183, 186, 217, 277, 366, 427, 434, 554, 651, 831, 854, 1281, 1302, 1662, 1891, 1939, 2562, 3782, 3878, 5673, 5817, 8587, 11346, 11634, 13237, 16897, 17174, 25761, 26474, 33794, 39711, 50691, 51522, 60109, 79422, 101382, 118279, 120218, 180327, 236558, 354837, 360654, 523807, 709674, 1047614, 1571421, 3142842, 3666649, 7333298, 10999947, 21999894]

約数ペア:

[(1, 21999894), (2, 10999947), (3, 7333298), (6, 3666649), (7, 3142842), (14, 1571421), (21, 1047614), (31, 709674), (42, 523807), (61, 360654), (62, 354837), (93, 236558), (122, 180327), (183, 120218), (186, 118279), (217, 101382), (277, 79422), (366, 60109), (427, 51522), (434, 50691), (554, 39711), (651, 33794), (831, 26474), (854, 25761), (1281, 17174), (1302, 16897), (1662, 13237), (1891, 11634), (1939, 11346), (2562, 8587), (3782, 5817), (3878, 5673)]