21325304

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2700

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 32380936

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2663, 4004, 5326, 8008, 10652, 18641, 21304, 29293, 34619, 37282, 58586, 69238, 74564, 117172, 138476, 149128, 205051, 234344, 242333, 276952, 380809, 410102, 484666, 761618, 820204, 969332, 1523236, 1640408, 1938664, 2665663, 3046472, 5331326, 10662652, 21325304]

約数ペア:

[(1, 21325304), (2, 10662652), (4, 5331326), (7, 3046472), (8, 2665663), (11, 1938664), (13, 1640408), (14, 1523236), (22, 969332), (26, 820204), (28, 761618), (44, 484666), (52, 410102), (56, 380809), (77, 276952), (88, 242333), (91, 234344), (104, 205051), (143, 149128), (154, 138476), (182, 117172), (286, 74564), (308, 69238), (364, 58586), (572, 37282), (616, 34619), (728, 29293), (1001, 21304), (1144, 18641), (2002, 10652), (2663, 8008), (4004, 5326)]