21409024

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:955

約数の個数: 72

約数和(自身を含む): 52653440

約数和(自身を除く): 31244416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 919, 1456, 1664, 1792, 1838, 2912, 3328, 3676, 5824, 6433, 7352, 11648, 11947, 12866, 14704, 23296, 23894, 25732, 29408, 47788, 51464, 58816, 83629, 95576, 102928, 117632, 167258, 191152, 205856, 235264, 334516, 382304, 411712, 669032, 764608, 823424, 1338064, 1529216, 1646848, 2676128, 3058432, 5352256, 10704512, 21409024]

約数ペア:

[(1, 21409024), (2, 10704512), (4, 5352256), (7, 3058432), (8, 2676128), (13, 1646848), (14, 1529216), (16, 1338064), (26, 823424), (28, 764608), (32, 669032), (52, 411712), (56, 382304), (64, 334516), (91, 235264), (104, 205856), (112, 191152), (128, 167258), (182, 117632), (208, 102928), (224, 95576), (256, 83629), (364, 58816), (416, 51464), (448, 47788), (728, 29408), (832, 25732), (896, 23894), (919, 23296), (1456, 14704), (1664, 12866), (1792, 11947), (1838, 11648), (2912, 7352), (3328, 6433), (3676, 5824)]