21661374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 51904512

約数和(自身を除く): 30243138

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 127, 131, 186, 217, 254, 262, 381, 393, 434, 651, 762, 786, 889, 917, 1302, 1778, 1834, 2667, 2751, 3937, 4061, 5334, 5502, 7874, 8122, 11811, 12183, 16637, 23622, 24366, 27559, 28427, 33274, 49911, 55118, 56854, 82677, 85281, 99822, 116459, 165354, 170562, 232918, 349377, 515747, 698754, 1031494, 1547241, 3094482, 3610229, 7220458, 10830687, 21661374]

約数ペア:

[(1, 21661374), (2, 10830687), (3, 7220458), (6, 3610229), (7, 3094482), (14, 1547241), (21, 1031494), (31, 698754), (42, 515747), (62, 349377), (93, 232918), (127, 170562), (131, 165354), (186, 116459), (217, 99822), (254, 85281), (262, 82677), (381, 56854), (393, 55118), (434, 49911), (651, 33274), (762, 28427), (786, 27559), (889, 24366), (917, 23622), (1302, 16637), (1778, 12183), (1834, 11811), (2667, 8122), (2751, 7874), (3937, 5502), (4061, 5334)]