21480424

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 48150180

約数和(自身を除く): 26669756

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 518, 1036, 1481, 1813, 2072, 2962, 3626, 5924, 7252, 10367, 11848, 14504, 20734, 41468, 54797, 72569, 82936, 109594, 145138, 219188, 290276, 383579, 438376, 580552, 767158, 1534316, 2685053, 3068632, 5370106, 10740212, 21480424]

約数ペア:

[(1, 21480424), (2, 10740212), (4, 5370106), (7, 3068632), (8, 2685053), (14, 1534316), (28, 767158), (37, 580552), (49, 438376), (56, 383579), (74, 290276), (98, 219188), (148, 145138), (196, 109594), (259, 82936), (296, 72569), (392, 54797), (518, 41468), (1036, 20734), (1481, 14504), (1813, 11848), (2072, 10367), (2962, 7252), (3626, 5924)]