21556195648

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{204007}}^1$

素因数の和:204159

約数の個数: 56

約数和(自身を含む): 46428956672

約数和(自身を除く): 24872761024

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 127, 208, 254, 416, 508, 832, 1016, 1651, 2032, 3302, 4064, 6604, 8128, 13208, 26416, 52832, 105664, 204007, 408014, 816028, 1632056, 2652091, 3264112, 5304182, 6528224, 10608364, 13056448, 21216728, 25908889, 42433456, 51817778, 84866912, 103635556, 169733824, 207271112, 336815557, 414542224, 673631114, 829084448, 1347262228, 1658168896, 2694524456, 5389048912, 10778097824, 21556195648]

約数ペア:

[(1, 21556195648), (2, 10778097824), (4, 5389048912), (8, 2694524456), (13, 1658168896), (16, 1347262228), (26, 829084448), (32, 673631114), (52, 414542224), (64, 336815557), (104, 207271112), (127, 169733824), (208, 103635556), (254, 84866912), (416, 51817778), (508, 42433456), (832, 25908889), (1016, 21216728), (1651, 13056448), (2032, 10608364), (3302, 6528224), (4064, 5304182), (6604, 3264112), (8128, 2652091), (13208, 1632056), (26416, 816028), (52832, 408014), (105664, 204007)]