21680664

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 55977600

約数和(自身を除く): 34296936

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 97, 134, 139, 194, 201, 268, 278, 291, 388, 402, 417, 536, 556, 582, 776, 804, 834, 1112, 1164, 1608, 1668, 2328, 3336, 6499, 9313, 12998, 13483, 18626, 19497, 25996, 26966, 27939, 37252, 38994, 40449, 51992, 53932, 55878, 74504, 77988, 80898, 107864, 111756, 155976, 161796, 223512, 323592, 903361, 1806722, 2710083, 3613444, 5420166, 7226888, 10840332, 21680664]

約数ペア:

[(1, 21680664), (2, 10840332), (3, 7226888), (4, 5420166), (6, 3613444), (8, 2710083), (12, 1806722), (24, 903361), (67, 323592), (97, 223512), (134, 161796), (139, 155976), (194, 111756), (201, 107864), (268, 80898), (278, 77988), (291, 74504), (388, 55878), (402, 53932), (417, 51992), (536, 40449), (556, 38994), (582, 37252), (776, 27939), (804, 26966), (834, 25996), (1112, 19497), (1164, 18626), (1608, 13483), (1668, 12998), (2328, 9313), (3336, 6499)]